Yes, be sure to keep good stuff.
On the bright side, a lot of good old stuff for far older games is still around and being played, preserved, worked on, offered free on web sites, even re-sold.
There are still communities for Atari 2600 games, people making new ones... so... Se4 isn't going to evaporate in 5 years. I know I'll keep my stuff, just like I keep my Atari 2600, 5200, 8-bit computer, and ST stuff, my Intellivision stuff, my DOS stuff, etc.
None if it will survive an EMP hit though, I don't expect. Only the stuff I have source code printouts for.
PvK