It's one of the best GC games, definitely. You should be able to find it for $5 too.
Just put your set into 4:3 mode when you play/watch 4:3 content, simple. You'd have to leave those bars up for days to make them burn in or anything. I guess some people inexplicably don't care, but it looks pretty messed up to stretch.
Eternal Darkness is top top tier too, and also a cheapie.