New York City’s BIG SODA BAN, set to go into effect next year, is supposed to help fight obesity. So we commend the week-old Barclays Center, the home of the Nets, for complying with the law well in advance, capping the sizes of sugary drinks at 16 ounces. But here’s the problem: Soda is now cheaper than water at the new stadium. So guests now have an economic incentive to buy the less healthy option. Yeah, we’re calling this one a BAD DEAL.