It's a huge problem in my opinion and one that both democrats and republicans would both seem motivated to solve together.
http://www.sportsonearth.com/article/40595178

Still, at least the county gets to enjoy the job-creating, local business-boosting gold mine of 10 NFL games a year, right? Wrong. Numerous studies have shown that the local economic impact of stadium construction is nil. Dennis Coates, an economics professor at the University of Maryland, Baltimore County, calculates that “the professional sports environment” -- that is, having stadiums and teams in a particular area -- may actually reduce local incomes. “Our model shows that average income is a little bit lower, about 40 dollars a year for a family of four,” Coates says. “Now, why might that be? There are a number of possible explanations. One of them -- and I think this is the most plausible -- is that a large amount of the money spent inside a stadium simply leaves the community. Think about the revenues generated. Fifty percent is player salaries. In most leagues, players don’t live where they play. So they take an enormous amount of money generated in the community and take it to south Florida or southern California and spend it. If that same money was spent on a movie, dinner, bowling, the theater, a locally owned bar, tips for bartenders and waitresses, all of that money predominantly stays within that community.”
Worse still, Coates notes that stadiums typically are paid for in regressive ways, via lotteries and sales taxes -- Minneapolis, for example, is set to boast the highest downtown sales taxes in the nation -- that disproportionately burden the poor, while the benefits of the stadium go mostly to relatively wealthy sports fans. Basically, it’s trickle-down economics in reverse. That, or an unwitting nod to the socioeconomic milieu of pretty much every Charles Dickens novel. “Lower income people spend virtually all of their income,” Coates says. “Higher income people save more. It’s clear that sales taxes are regressive. And we haven’t even talked about people who may not have interest in sports. Suppose I’m a big fan of the opera but hate football -- with a sales tax, you’re asking me to pay for a team that makes me upset. But that never gets factored in to these projects. It’s only the people who are going to be happy about having the team that we think about.”