I had a nice Kurt Kinetic trainer for awhile and was using the Spinnerval DVDs to ride to. The shifting of bike gears never felt realistic for me while using the trainer ... there was a slight lag time so after a season I didn't use it any longer. The following year I bought a spin bike and have enjoyed it tremendously. This is just my opinion with the first experience I had using a trainer (it was a high-end fluid KK, as well).
Specialized Ruby/Selle Italia Flow
1991 Specialized Sirrus, steel frame
Dahon Eco C7
Surly Long Haul Trucker/Terry Fly RS
Trident TWIG Recumbent