[The Deuce]

I've ridden sport bikes and cruisers. Both bikes are fun for different reasons, but with the cruiser (Honda Magna) I always kinda felt like a wannabe HD guy, which I am in fact.(Love the fatboy)
In terms of what to look for buying a bike. I never buy ones that have been dropped, although drop doesn't always mean wreck. I also have not picked up a bike with more than 10k miles on it. Again, these are both just me, and if I found a sweet bike with more miles on it I would buy it.
Just don't ever get one with a Salvage title. I don't care what anyone says about it just being because of the plastic, that is BS. If the insurance scrapped it there is something not good about the bike, as would be the case with a car.
As for total miles, most bike mechanics out here consider 50,000 to be a LOT of miles on a bike. I figure that my be considerable to 100k on a car. Figure what you will accept in terms of somebodys weekend car and divide by 2. I would try and stay below 30k.
Good luck, and let us know what you find.