It's funny, because whats cool and fun to play on guitar (Blues, classic rock, metal, Be-Bop) is usually boring for Bass, and vice versa, what's cool and fun for bass (funk, disco, R&B, Modern Rock) is boring for guitar. I guess that's why Progressive Rock and Fusion were developed, to keep everybody happy.

There's something cool about playing bass and just locking in with a drummer to establish a tight groove that's different about playing guitar.