I LOOOOVE F-Zero X. For me, it's so much more playable than GX on the Cube, and I actually prefer the blurry pastel graphics of the N64 version. It's been 9 years since I spent $50 on the original cartridge, so another $10 here isn't going to hurt.
I really expected the Cube version to be more like this great game, but who cares so long as this is still available!
The track editor from the DD drive would be nice to have, but there's no need for greed.