You mean the full color box thats for all practical purposes the same size and prominence as the cart you're checking out?
Now are the constraints on licences (aka agreement), not great, not consumer friendly .. different set of questions.
(iirc this was also Sony, ironically.
Fake edit, I looked it up; it was Sony that put a rootkit in its CDs, they were sued and settled out of court https://boingboing.net/2005/11/14/sony-anticustomer-te.html). Microsoft, Yahoo and Wal-Mart changed their services in such a way that music was no longer playable in 2008 (https://opensource.com/life/11/11/drm-graveyard-brief-histor...), with Yahoo even encouraging users to burn their music to CDs to keep it. In 2011 Rhapsody recommended to back up their older DRM'd RAX files to another format so they remain listenablle.
These are not the same situation.
You seem to have semantics you apply to the word 'buy' and think the world should align to that, it clearly does not.
What games and some software do these days is much worrse. You have a license to use their "software installation service" and their "let me run the game" service until they decide to turn them off. At any point, at their discretion, they can remove your ability to install a new copy or even run it all together.
Very different and quite recent.
I was never in the "resell software" mindset, similarly to books, I don't sell those, unless I get a present that is mistargetted. No one gifts me software sadly.