I'd much, much, much, much rather play the original than try to get comfortable in a computer chair and squint at my tiny monitor, so I buy games if I can find them.

Most of the games I emulate are SNES-era RPGs that I wouldn't be able to easily find anymore unless I Ebay'ed for them, and I don't have the means to shop online.

I'm not overly concerned with the morality of it, to be honest.