I enjoyed my gamecube greatly but its library was not a patch on the PS2 nor for any same game on multiple systems really superior to the original xbox (some GC versions being better than the PS2 but same or worse than the xbox, give or take your fondness for Link in Soul Calibur).
To that end I would be looking at exclusives and while there are some nice things there (better than they managed for the Wii, Switch or 3ds from where I sit) that is still a reach, even more so if I compare to things from later generations.
