Would you be buying games for $50-$60 through Stadia? What if they follow a model like Playstation Now or Origin Access, where you pay a monthly fee to have access to the entire library (a la Netflix)?

I haven't bought a game on physical disk for a long time. My impression is that in many cases, you're still going to be downloading a big release day patch upon installation. And for multiplayer-heavy games, it doesn't matter if you have a physical disk when the servers are shut off.