The problem is twofold I think.
1 of course, time. It takes a while to write a good game.
The other is quality. There are already a LOT of good games out there. So, anyone starting will have a hard time coming up with something that hasn't been done or looks better.
I know when I started trying to write a few games back in the day, it was related to that. I started writing an Ultima clone, and I got my basic game map with a jump scroll and non-animated characters moving. No game logic or double buffering yet, but it was a decent start, and then Zerg was released, which was almost exactly what I was going for, but better.
My second attempt was for a solitaire game with some flexibility. Got that one all the way working (when you selected cards to move, it outlined them, you didn't "pick them up", I was just starting to work on the BOB routine for that) and Klondike came out. MUCH better than mine..
(Although, Asha DeVelder (an Amiga fidonet chum) liked it, and told me she was still using my version in either late 90's or early 2000's, I can't remember which. That was nice.)
But I remember, except for Asha, when I showed people what I was working on, there wasn't much support. People were always saying "This game is better" or "that demo does that, you need to add that".
So I stopped and went in to other stuff..
Getting back into the Amiga, part of me would love to throw something together, but I don't see that I could write anything better than what is out there.
With the old systems, (8-bits) you are trying to do something that hasn't been done or shouldn't be able on an 8-bit.
With the Amiga, part of me would love to write a top down RPG engine(maybe somewhat ISO), but I know it wouldn't compare with whats out there. On the 8-bit side, I see people supporting projects, whether or not they are new or better. On the Amiga stuff, I see people complaining about commercial game quality on the forums and I know I couldn't even get to there...
Now, if you put up money, that won't effect me at all... :-) But I suppose you might find some retired amiga game/demo coders out there... I'd doubt it tho...
desiv
