el-remmen said:
I take the opposite point of view, it's
all D&D - and the rules you are using are not what determines that unless you are using a wholly other rule-set - and sometimes not even then.
Then this is mostly a matter of semantics. Because, really, I don't need loot in a d20 Modern game, except occasionally more clips for whatever gun I'm using.

That's because in d20 Modern, my ability to take down the big bad guy isn't (or shouldn't be) dependent upon whether I've got a +4 kevlar shirt of fire resistance. Heck, in Mutants & Masterminds, I don't even need those ammo clips.
In Grim Tales, it can go either way, depending on what kind of game you're running.
But if you're trying to run low-treasure D&D, you've got to change a whole bunch of spells, class abilities, and in some cases even rules in order to rebalance things -- or you have to mess around with the CRs of many, but not all, monsters.
Well, "got to" is strong -- you don't "got to". But if you don't, you are almost definitely going to mess up the class and power balance in a lot of ways.
I'm not saying that you're doing that, Nemm. But a dude who runs a no-magic-item, little-money game with all the other rules unchanged should not be surprised when nobody wants to play a straight fighter.
In my mind, and again, semantics, if you don't change a lot of stuff to account for low treasure, you're a bad DM. If you do, you've changed the feel of the game enough that you're not playing D&D -- which does
not mean that the game isn't fun. It just means that, in the mind of the Tacky, it's different enough that it ought to be called something else.