Thanks for the invitation! I used a C64 as my only computer in the late 1990s long past its prime, because my mother got a really good deal on a whole set with printer and disk drives and plenty of disks with software (mostly games, from magazines). However, I was still a bit annoyed by the limitations of the system. I guess, if I had had a forth disk, I might have felt different.
In any case, for personal reasons I don't want to explore the C64 more.
But I never had a GameBoy Advance nor a Wonderswan.