Michael Rivera, now 17, has been a sneakerhead since he was a little kid. His mom, who goes by Tootie, saw an opportunity: Get straight A’s in school, she told him, and you can get a pair of sneakers.Michael put his mind to it, and Tootie and her husband kept having to buy him sneakers. A deal’s a deal. With every report card with straight A’s, she got him a new pair of sneakers. “They kept getting more expensive,” she tells Deadspin. This year, he wanted something at the top of the price point: The Nike Adapt BB, a $350 performance basketball sneaker that released last week.