We need to stop comparing Dre and Burks, there are only minimal at best similarities.
Burks was drafted in the top 3rd of the first round his ability to earn any more money based on the slotting the NBA does is almost nil for his rookie contract, in all likelihood he may have actually dropped a couple slots in what was a stronger draft the ensuing year. From a pure financial sense Burks made the right move, guaranteed money in hand today is worth far more than the potential to earn a hair more next time through. Learning and production really has nothing to do with your first couple of years on an NBA guaranteed contract.
Now Dre on the other hand is a very different example, he's almost assuredly looking at non-guaranteed money this year, there is a slim chance he could flip a switch and move into guaranteed money land next year. It is however more likely that he's a UDFA or late second rounder either year, so then the question becomes whether or not to mature in college, the d-league, or Europe. Not sit on the end of a bench like Burks banking millions.