Some people are "it's new and I gotta have it" buyers and don't keep anything for long. I have to say that this is definitely more popular in the HD world. Look at CL or cycle trader and you can find newer, low mileage HD's all day long. I got my 05 Sportster a few months ago with 7k miles and the original tires on it.

The F6B is definitely a keeper. These bikes are built for low maintenance and high mileage. I know I plan to have mine for a very long time.