Quality gear. These can be greens, rares, whatever. However, always think, "Who needs this?" Items that have stats like Stamina are typically useful to all players. Items with stats like Spirit are only useful to a subset. Items that combine two highly sought-after stats, like Stamina and Intelligence (which all casters need) will sell for more than items that combine two stats like Agility and Spirit (which practically no class needs).
It surprises me how this farm was not made public until Legion. It literally slipped through our sights all throughout WOD, where admittedly it would of been a GREAT replacement for the infinite embersilk spot that was quickly nerfed. Anyway, this volatile fire spot takes place in twilight highlands in the humboldt conflagration area – which is a small fire bed with about 20-30 elementals roaming around. Each time you kill you have a chance to recieve volatile fire which is worth 50 – 100g per drop. However, according to my test, the volatile fire has a higher drop chance than the volatile water. I believe this has to do with the popularity of the volatile water farm in WOD, it's popularity may have of gotten it stealth nerfed. Sad to say, but this spot is slightly better in my opinion. REMEMBER to use a potion of treasure finding.
This farm very much resembles the Dire Maul farm in that it allows you to hit multiple markets without having to do too much. You can mageweave, runecloth, greens, world drops, and herbs all from this one single spot with the addition of countless transmog items. I personally love this spot – however I feel I stumbled upon it a little to late. The benefits is that this is the LARGEST instance in the entire game – literally. You can spend up to 15 minutes pulling the entire instance. You are rewarded however with an abundance of drops of all kinds. You can quickly fill up your inventory here. If you need greens form the 47-51 area, this is your spot. As mentioned, you will also get soo many trade goods that it's hard not to fill even the biggest of bags.
I dont know if this exist already, if it does I couldnt find one, but it would be nice to have a guide with the location of all daily quest broken down by Alliance, Horde, Faction, Neutral, etc. I know there can be variable quest for things like Fishing and Cooking but just having the location for those quest givers would be great. If it were a stand alone addon that would be even better!