Hope you at least gave them to a friend? That's where mine came from. A good friend sold all his GC stuff, but asked me if I could use the cable. Gave me it for nothing. Granted that was 8 or so years ago, but still cool.
Eh, it was a friend of a friend.

But it's ok, back then how could we know, really? Same with those Hori Super Famicom-like controllers... They go for like 3/4x the price of a GameCube itself, nowadays, which is bonkers.
CubeGAF, I think I still need you. I may have found a
Game Boy Player - it's boxed, complete, in great conditions, and it's very reasonably priced - but I'm having quite a hard time to find a Datel SD Media Launcher, in order to use the Game Boy Interface homebrew software.
Assuming the vanilla GBP will be my way to go for a while (I really have no idea how to find one of those sets from Datel), does it make the whole purchase pointless? I mean, I read the add-on is pretty poor, the way it comes out of the box - with input lag, muted colors and horrible stuttering - so I should probably not bother, for now. What do you think? I'm quite conflicted tbh.