If being comfortable is important, look at a recumbent exercise bike.

I couldn't convince the wife to use the bike on a wind trainer, but, she said she would use a recumbent. i was hoping to find a decent one on craigslist in the $100 range, but, came across a really nice life fitness RT8. The guy wouldn't budge from his $300 price, so, i gave in.

Man, am I glad I did. This is a fitness club quality machine and it requires no batteries or power cord. It is extremely smooth and quiet. I can pedal at a very high resistance/cadence without turning the boob tube volume up.

I have been intrigued by bent bikes for a while now and riding this thing with zero discomfort has me even more interested.

Wonder how i'd look in a beard?