While I would have loved to see both THPS1 / THPS2 soundtracks in their entirety, they brought back some solid tracks. And hey some El-P in there too? Nice.
Playing through skate 3 again and the new SSX made me realize something. These types of games really benefit from custom soundtracks. When I play extreme sports games, I can find myself spending hours on one mission in skate trying to nail it perfectly, or on one run in SSX trying to get a satisfactory score. Hearing the same few songs over and over again can really take me out of the zone.
That's why I loved SSX's use of custom soundtracks that were integrated into the game. To be, just changing the rotation of the tracks can make it seem brand new. I'm really hoping for future instalments of games in this genre, they really utilize custom soundtracks.