On the building a Commodore game room for sick kids charity idea: one thing they wouldn't have is nostalgia for the 1980s home computers. Just get them Nintendos.
That said, why can’t there be nostalgic 80s/90s consoles AND same-era computers?
No, I meant, if you want to provide video games, just provide whatever is current and popular. Also, they should research whether there is actually a need for this. One suspects that such a thing already exists.