> Interesting. And sad. Ah well, I suppose I'll put this off till some other day, and
> sell my Raspberry Pi (shouldn't be hard, they're in demand).
You never mentioned what games you're trying to run. Given that knowledge, we _might_ be able to come up with a minimum-spec system that can emulate your games.
You may also enjoy Bryan Ischo's MAME Bench project, where he bench-tested thousands of games in MAME 0.136 on an Intel Atom 1.6GHz. Just to give you an idea.
My point is: Raspberry Pi, no.. but you start talking higher-end Android device, then maybe. And some of those can be had for a few hundred dollars.