Cool. I was thinking this would be the next great cycling product. Some ways I would approach it would be to #1 - make it cheaper. Perhaps instead of buying the whole bike you just buy a trainer with USB connections to a computer.
LCD monitors are so cheap I would put one on the front of the bike; clip-on if you use a trainer. Then that connects to the trainer and possibly your tv service. That way you can watch tv, programs for racing, advertisements, etc.. The advertisements would allow direct market interaction to the people cycling companies would want to target.
I would set up contests for people so that the person to have the fastest mile for the day/week/month/year gets a prize. Same goes for distances, climbs, etc.. They could be gel packs, cages, wheel sets, etc.. A LCD monitor could also mean you could have new games to compete. Put a couple buttons on the bottom or use a touch screen and now you can make it all interactive and introduce other races that are more like games than races. For example, first person to finish a 20 mile circuit with 10 second detractions for every multiple choice question you answer incorrectly. Or you could make it like Mario Kart and if you get to the 5/10/15 mile markers first you can do things like increase the other persons resistance for 30 seconds, or make their odometer stop counting. They'll be resting, but they won't gain any distance.
There are so many ways to make it cool. A $3500 dollar machine probably isn't the answer.