Here is where I am at. Live in an apartment so space is tight and needed everything to be able to move into the closet. I’ve got SNES, N64, Wii mini, Sega Genesis, PS2, a vcr, receiver and stereo speakers, Extron switcher, and playing them all on a Sony PVM14L5. The rack is from Amazon and most are hooked up via RGB.
Lol for me, the key is not have specific games in mind as they’ve gotten so expensive. So I hit up used and retro shops and just see what piques my interest.