you're right...and you're wrong. the race x lites are carbon rims (tubs), and 550ish a wheel. not a pair. same with the selects (the ones that come on the T1) (around 250 a wheel). there is also a deep well aluminum rim that are clinchers, but I can't find out how much those cost (I work for a trek dealer, so if you're really curious, let me know and I'll find out)
-jason
oh yeah! and I REALLY want a Trek T1 with the carbon 16 spoke tubs...real bad.