It's amazing, I can still pop in a game on any of my 80/90/early 2000's gen consoles & they just work, no hassle, no fuss, no need to DL extra's, etc.
Now, say, 20 years from now, will I able to say the same about current gen consoles, or even next gen consoles? Not if I buy incomplete games that require me to DL extra parts. to just play it, from a server that no longer exists.
Do people like, Rod Cousins, even think about stuff like that? Probably not, just where's my check, runs to car & speeds off, leaving us with incomplete games that future generations won't be able to play.