The basic concept wasn’t “there and then left” though, like I feel as though you’re implying. Games came with extra content like maps and guides, sure, but regardless you always bought and owned the game. This has been the case with board games, card games, other physical games, and even digital games since until recently.

Would you suffer the same emotional trauma if you had a leaky roof and your physical game collection got damaged and was unplayable?

That would be pretty upsetting, yes. I owned those, though. I very well may own that roof, too. There’s a lot to be said, considering a leaky roof may even be my own responsibility. You can loose access to a downloaded digital game, however, while maintaining the console fine.

Why would your favourite game that was still saved on your console not be playable but putting a disc with the same data on it somehow would be?

Because of how the licensing framework operates with digital games. It’s no longer in your control to protect your access. Governance of your access isn’t owned by you anymore. When a game is designed to require purchase validation, which many are and they can be changed to retroactively, but the validation server goes offline, you can’t play it without modifying the system—assuming you can modify the system.

You’re getting a little too upset over the potential that you might not be able to play some games you deleted

Games have become inaccessible in the past and will continue to do so. Requiring all games be virtual pretty much ensures all games will, sooner rather than later.

It also goes without saying, it’s a lot easier to protect a disk collection than it is a console. Consoles have many more moving parts that can fail, for obvious reasons.

I don’t think it’s too far fetched to be upset by this.