If you actually care about video game preservation, you pirate and data hoard, simple as. Not so fun fact: There's tons of early black and white movies that are lost media simply because film reel was extremely flammable, we have movies that no longer exists because they quite literally went up in smoke. The movie Nosferatu was almost lost media because every copy was ordered to be burnt due to Dracula copyright infrigement, it's because of chads that broke the law and didn't burn their copies that we can still watch it today, totally free since it's now public domain.

Remember to thank pirate and emulation chads for making sure your favorite games will still be around 50 years from now. Also go back-up your shit.