One correction, they Sport and Comp don't have the same wheels. I'm not sure why I thought so. The Sport has 32 spoke wheels while the Comp has 24/20 spoke wheels. So the Sport's are probably stronger and more maintainable while the Comp's are probably lighter.

The Sport just seems like a much better bike for a wide variety of riding conditions by someone who doesn't want to spend a lot of time and money on maintenance. The Comp is lighter, but not as durable and more finicky. There's a lot you could do with the $700 you'd save by going with the Sport.