All of them.
Because, why not?
There are so many great games across so many systems.
Some never saw mass appeal, some were short lived, some had good runs only to be ended by licensing deals gone unrenewed.
Try to enjoy as much of it as you can while you can.
Especially this latest generation. I love the games coming out now but I worry for their future.
I’m convinced 90% of this gen’s games are going to be a dumpster fire of brokenness 20-30 years from now. But your NES copy of SMB 3 and Atari copy of Combat will still work just fine without patches or updates.