SHOULD I BUY AN SNES???

I usually get a lot of money for my birthday, (grandmas come in clutch) and there's either this SNES, or NES at this retro game store I go to. I really want it, but I think my TV is gonna run out of HDMI space. I aslo think I'm gonna run out of space for the consoles themselves, but I think I can get a shelf for those. I'm also gonna need a shelf for the games, but whatever, I'll need a lot of shelves.

UPDATE: I FOUND OUT WHAT AN HDMI SWITCHER IS! If I get one of those, It'll be so cool.

The real question is: Should I keep collecting PS1 games, move on to the SNES/NES, or do both at the same time?