Yes, I absolutely want to be able to play any game I own on that platform at any time. That's the entire reason I bought the game. Being restricted to the library on one platform is already a massive concession.
"You can only play this game if you preemptively lug it around with you in case you want to play it today" is not an acceptable condition of a purchase to me.
That's what happens when your core manufacturing philosophy is "withered technology". You get old tech people have figured out.