I don’t sell games, it’s not worth the effort
I can’t even remember the last time I lent a game to a friend or lent a game from a friend
I have fiber to my house and pay for 100/100 mpbs
I don’t have a data cap
I see no purpose of physical games if I have to install them anyway
I agree that digital is to expensive if you consider you don’t have to make and/or distribute a physical copy (same thing can be said about ebooks). But heck convinience.
There's barely any effort involved. Just offer them for 10% less than others do and multiple people will contact you. Just pick the one which suits you best.
I was getting rid of some of my GB and GBC games last year because I saw that Pokemon is still valued pretty highly.
Was getting ~€15 for each Red, Blue, Yellow and Silver and a whopping 35€ for Crystal, since I still got the manual and box.
Crystal was literally sold within an hour.
Or if you're fine with getting a little less money, just sell all games (and other media) to a reseller. Even more convenient but less profitable of course.