I've got a SNES stuffed in a box in the basement, along with a Sega Saturn. My first console was an Atari 2600, soon followed up by a colecovision, and eventually the ADAM.
I just wish I would have kept all that old stuff.
The great thing about those consoles is you can just whip them out and plug them in and you are right back enjoying the games from decades ago.
With the crappy hardware they put out these days, I doubt there will be very many current gen systems in working condition 20+ years from now. I've had 2 xbox 360's die on me already.