The way I see it is that $14.98 is like $6 more than the typical item in the S&B store... and that $6 per pair is what Marbury earns.
Just by saying some of the money goes to charity would have made the starbury brand more philanthropic, along the lines of Lance Armstrong and his wristbands; it could have been the difference between a merely good idea to sell shoes into a great one, where everyone benefits on several different levels. Too bad.
Come on. The guy sells a quality sneaker for $15 bucks and you want to give him grief because he did not donate more of the proceeds to charity. The point is that he is selling a stylish show that kids can feel cool wearing and their parents do not have to go out and spend $150 to buy them. As a person who used to buy those $100+ shoes, this $15 shoe is definitely a good thing. If Marbury makes some money out of it (and I have some doubts that he is making $6 per shoe), I don't think that takes away from the important message he is sending to other NBA players and other shoe companies.