Why wasn't 1080 Avalanche as successful as 1080 snowboarding?

As a kid I played a lot of 1080 Avalanche for the Nintendo Gamecube!

I liked the game a lot and liked the gameplay, the tracks, etc.

Then why was the game less successful than its predecessor for the N64.

The graphics were at least a lot worse (the first beginnings of 3D gaming)

I know that graphics are not everything, other things just matter.

Thank you for informative, interesting, helpful, great & very honest answers!

This is because the N64 was more successful than the GameCube and therefore the game for the GameCube sold less than the game for the N64.

Ok and if you only take the games. Which one was better.

In terms of gameplay, I found both games about equally good, but of course the graphics in the game were better for the GameCube.

As far as I know, there was Ricky Winterborn in both versions and this one Japanese woman whose name I could never remember. Those were the only two characters who were identical. All the others were, I think, different.

Which version offered more routes. I only owned the GameCube version.

There were more slopes in the GameCube version as far as I can remember.

I once looked at a gameplay of the first title and the slopes all looked almost identical, so they were similar, in the GameCube version there were at least avalanches and in general the flora and fauna were more lively. With so much performance, the Nintendo 64 would probably have shed. : 'D