1) That's good to hear, I'll try to make the video more prominent.

2) What's your reasoning for the $30 price point, as opposed to something lower? Also, having more than one class in a slot would cause some confusing overlaps in homework due dates and such, but you're right, there will always be some people trying to do it.

3) That's a good point, I'll look into a database of schools that I can put behind an AJAX picker.

4) I worried about that when I made the tour. I'll work on tacking on short segments from a student's viewpoint at various points in the video.