I'm interested in honest real world experienced opinions on the quality of watching video on this device. Screen size is obviously a concern because my usage pattern will offer me ample time to watch movies, either while traveling or while running at the gym. I have concerns about the screen size however and the ability to watch it for hours on end say while traveling. I know I know the touch has the larger screen but doesn't have the storage for my purposes so lets try and refrain that as a recommendation. I can't justify a larger expenditure for something that has less overall use for me. Are classic users satisfied with the overall video experience it provides, can you tolerate a full length movie without getting a headache?! Honest answers would be most welcomed.