I don’t have plenty of money. I’m sitting on about 100 mil of free cash at the moment because I spend my cash. I have some indicators of wealth for being around awhile (lots of alts, mini modes, etc), but the desire for more cash is there.
I guess there’s not a reason besides profit margins, no. Unless you count that I simply don’t mind the game having a couple items here and there that take more than an hour to acquire. Other MMO’s have things like legendary items that require weeks of work. If the Provocation market changes, that pretty much only leaves aether particle items having any significant value.