I don't know if devs often check the AH (my guess is they don't). It's very hard to find bullets lately (any kind of ammo actually) and what's available is very expensive (on my server normal bullets are 10k a stack while iron and steel are closer to 20k a stack). It's great that Tsutsuroon sells bullets for a reasonable rate but his stock is very limited. (I think it's like 55 bullets a day on good days). It would be nice if he sold more bullets (or if some form of plentiful exclusive bullets could be sold by an npc so that bullets would be more available).

I don't mind synthing my own bullets but sometimes I don't have the free time to do so before ls events and I run through my stock very quickly.