If only the US could add to their copyright laws catalogue maintenance duties and that any failings on their part makes the pieces not maintained on catalogue fair game for other publishers to republish and make money off of even if not yet considered public domain...Lots and lots of years of legal precedent and a physical good. There's definitely a difference. I'm speaking from a US point of view, but the "First Sale Doctrine" makes it clear that purchasing a copyrighted good grants the purchaser the right to resell that copy, and only that particular copy. So a pretty big difference, at least in the eyes of US law.
All of a sudden you'd see a buuuuttt load of remasters and re releases and not just in video games ...
I'm just saying guys it's about damn fucking time you have that conversation with your law makers ...