USB 2.0 is much faster, will also accept 1.1. Therefore
will cost more. As far as a version 2 as opposed to a version 1, look at features of both. Probably a good reason for the $100.00 price difference. chuck
I would like to know what is the difference between the WinTV USB2, and the WinTV USB1. As far as I can see, there doesn't seem to be much difference, and I can get the WinTV USB1 for $100 less.
Does anyone have any information on this?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic