Trainers and rollers (without resistance) seem silly waste of time to me.
BUT, rollers that power a fan blowing cool air onto you makes epic sense.
Kreitlers with the Killer Headwind are perfect, IMO. Despite living in San Diego where the roads are smooth and the weather's always nice, my Kreitlers still get plenty of use.

I have some sound-absorptive foam sheeting on the fan unit to the right of the photo. They're not that loud, but this way I don't have to turn the Tour DVD up so loud to hear it.