The issue is that Apple's App Store limits the options for a software manufacturer. The App Store is attractive, but it does not give you a path to paid upgrades. They had to choose, and they chose this option.
Exactly. I actually think the way they handle upgrades for users who bought after March 1 was clever. Those users get a non-MAS key that works. I also think that $50 is more than fair for this upgrade.
