That's probably how they make their money...
Yeah, I can see how they might prefer to sell them in bundles to make more money. Bandwidth costs would be another issue, I suppose. Still you'd think some bright, enterprising spark would have thought of it.
Given the fact that they already spend 3000+ USD on the app there is little reason why they should really think about 100 USD for 4 hours of tutorials ...
I would assume that people learning 3dsMax would be in their target audience. 3dsMax costs £75 for a 2 year academic license, which I think is pretty reasonable, even for a student.
In any case, there are a vast number of user created video tutorials around, so I guess I'll have to make do with those. I just would have liked to find something which was a little more organized and focused.