1. IDENTIFYING POSSIBLE SALES
When a piece of gear drops, the first thing to do is to decide whether or not it's worth selling on the AH. There are some special cases, but here's the basics.
If a 1-handed weapon has 900+ DPS OR 600+ DPS and 500+ life on hit, you can sell it. Any extra stats will increase the price, but do not make it worth selling on their own. For 2-handed weapons, you want 1100+ DPS to consider selling it. Lower DPS with Life on Hit is not as valuable on 2-handed weapons as it is on 1-handed.
Bows are valued a little differently than other weapons. For 2-handed bows, 1000+ DPS is worth selling OR 800+ DPS with either a socket or 50%+ crit damage. For 1-handed, consider 900+ DPS or 800+ with socket or 50%+ crit damage.
Armor can be a little tricky to figure out what will sell and what won't. For convenience, I have grouped stats into three categories: UNIQUE, PRIMARY, and SECONDARY. UNIQUE stats are only found on small numbers of slots, and thus are very important to have on slots that can have it. PRIMARY are useful for everyone of a given class, and SECONDARY are generally not as useful. If you have a LEGENDARY that contains a UNIQUE not generally found in that slot, it will be valuable.
UNIQUE Crit Chance (Gloves, Bracers, Amulet, Ring, Helm, Off-Hand) Crit Damage (Gloves, Amulet, Ring) Attack Speed (Gloves, Amulet, Ring) Socket (Helm -- consider sockets in other slots as +40 stat of choice) Life On Hit (Amulet, Ring) Movement Speed (Boots) Max Discipline (Demon Hunter Chest, Off-Hand) (Other class-specific? Unsure) PRIMARY Strength Dexterity Intelligence Vitality All Resist Gold Find Magic Find SECONDARY Everything Else
Guide continued after the page break..
Now, how do you know if an item is worth selling? Generally, you want items to have multiple good stats that complement each other. Below I have provided a list of "good" stats, as well as the number needed to sell for that slot. FOR ANY SLOT, you can sell with less stats if they are VERY HIGH (e.g. 200+ main stat, 25 gf, 20 mf, etc.) Note that the more possible "good" affixes in a slot, the more you need to have the item be worthwhile to sell. Prices vary wildly by slot, but here's some examples of makes a good item in various slots:
SHOULDERS (2 to sell) Main Stat 150+ Vit 100+ AR 50+ Gold Find 20+ Magic Find 15+ GLOVES (4 to sell) Main Stat 100+ Vit 100+ AR 50+ Gold Find 20+ Magic Find 15+ Crit Chance 5+ Crit Damage 20+ Attack Speed 6+ HELM (3 to sell) Socket Main Stat 100+ Vit 100+ AR 50+ Crit Chance 5+ Gold Find 20+ Magic Find 15+ CHEST (3 to sell) Socket 3 Main Stat 100+ (must be 200+ if no sockets) Vit 100+ AR 50+ Gold Find 20+ Magic Find 15+ BELT (2 to sell) Main Stat 150+ Vit 100+ AR 50+ Gold Find 20+ Magic Find 15+ PANTS (3 to sell) Socket 2 Main Stat 100+ Vit 100+ AR 50+ Gold Find 20+ Magic Find 15+ BOOTS (3 to sell) Move Speed 12 Main Stat 100+ Vit 100+ AR 50+ Gold Find 20+ Magic Find 15+ BRACER (3 to sell) Main Stat 100+ Vit 100+ AR 50+ Crit Chance 3+ Gold Find 20+ Magic Find 15+ AMULET (4 to sell) Socket Main Stat 100+ Vit 100+ AR 50+ Gold Find 35+ Magic Find 30+ Crit Chance 5+ Crit Damage 20+ Attack Speed 6+ Life On Hit 300+ RING (4 to sell) Socket Main Stat 100+ Vit 100+ AR 50+ Gold Find 15+ Magic Find 13+ Crit Chance 3+ Crit Damage 20+ Attack Speed 6+ Life On Hit 100+ OFF HAND Varies wildly by class. DEMON HUNTER (Quiver) (4 to sell) Dex 75+ Vit 75+ Socket Crit Chance 6+ Max Discipline 8+ Hatred Regen 1+
The above list provides what I hope is a useful guideline for what to sell. Note that certain classes will target certain items more than other classes. It is good to target a specific class when selling. The below list demonstrates what various classes want, in rough order of preference -- the more items on that list you have the better.
BARBARIAN Life On Hit Vitality All Resist Strength Attack Speed Crit Chance Crit Damage MONK Life On Hit Vitality All Resist Dexterity Single Resist Attack Speed Crit Chance Crit Damage DEMON HUNTER Dexterity Crit Chance Crit Damage Attack Speed Vitality All Resist Life On Hit WIZARD Intelligence Crit Chance Crit Damage Attack Speed Vitality All Resist Life On Hit WITCH DOCTOR Intelligence Vitality All Resist Life On Hit Attack Speed Crit Chance Crit Damage
Before going on to the next section, there's a few fringe cases to consider:
FRINGE CASES TO SELL NO MATTER WHAT OTHER CRAP IT HAS 18+ MF (any slot except helm, which needs socket, and amulet, which needs 30+) 23+ GF (any slot except helm, which needs socket, and maulet, which needs 35+) 200+ Life On Hit Ring 600+ Life On Hit Amulet
OK, that was a lot of stuff, but hopefully we know what is valuable enough to sell. And we know that the more stats and the higher those stats, the more valuable.
2. HOW TO SELL ITEMS
First, identify your top three stats. This is normally primary stat, vitality, and all resist. If you don't have three useful stats, only use two (or one!). Select the type of armor, and enter in rounded numbers below your item's numbers. If it has 136 dex, search for 130. 200 dex, search for 190. You get the point. Enter that in for all stats, you are searching for. Finally, enter 9999999999 in the max buyout field and click search.
Sort your results by lowest buyout (click buyout twice). Depending on how good your item is, you will see a range of prices here. Hover over the first few items in the list and mentally compare to your item. If they are all better than yours, you might want to adjust your filters downwards a bit more. Same if they are all worse -- adjust upwards a bit. Refine until the first few items are similar to yours, and check the prices. If the first item on the list is 1d10h or 1d11h, post a buyout 10% less than it to sell. If it is a lower period of time, post a buyout 25% less to sell. Initial bid prices are up to you, but I usually post initial bid as 25% of my buyout price on normal (read: not godly) items.
Identify your top three stats as with armor, and set up your filters the same way until you get to the buyout. Here, enter in 10,000. Click search and look at the top DPS. Is it more than your weapon? Sorry, not worth selling. Is it less? Change buyout to 100,000 and look again. Continue adjusting buyout until the top DPS weapon matches yours. Subtract 10% from that max buyout you just discovered, and use that as your buyout.
- God-tier items
If you follow the instructions of searching based on your item and absolutely nothing pops up even when you subtract a bit from the stats you search for, congratulations you just won the internet. I do not recommend buyouts on god-tier items. Instead, start an auction with a reasonable starting bid (10 million usually works for items in this category) and let the free market do its work.
- Items with 4+ useful stats
These are tricky to sell. Pick 3 and filter as normal. Now, though, you have to do more work. Check the stats of each item until you find the cheapest one with comparable fourth stat to yours, and undercut that by the standard 10-25%.
I know this was a huge wall of text. I hope it was useful for somebody -- most of this was just instinct for me and this is my first attempt to put it into steps to follow. If there are any problems with this or you have suggestions, please let me know!