have the emulators gotten way better? last time I used/installed one was probably 08 or 09. think it was project 64 wasn't bad but definitely had its hiccups
RetroPie is really nice. You can emulate just about anything if you have a nice enough PC. A raspberry pi will work really well for anything up the the SNES, but if you want to emulate PS1 or N64 games, it gets a little iffy. The next model will probably perform better, and I think the aim is to keep it priced around $35, but I don't think it comes out until 2019.