Consider the revenue from a perspective that measures the net profit for the tax paying citizens of big-sports communities, weighed against all of the real world costs used to maintain the behemoth facilities.
Real cost vs. revenue profit evaluations are nearly impossible quantify due to many complex, and intangible variables. There are underlying reasons behind certain correlations noted between pro-sports metropolitan cities, and non-dome cities.

Before I start to ramble, I will cut it short by simply suggesting that most of the troubles found in big-sport metro areas are self created problems caused by poor money management, and investments made with tax payer money.

Politicians always want to do stuff to expand, expand, expand dat phat tax payer pot of gold with promises of "increased tax revenue," as if that's a great deal for citizens. Spoiler- it's a terrible deal for the Joe Average tax paying citizen to have to pay to build that privately controlled bullshit, and then foot the costs of infrastructure expansion, maintenance, and other costs associated with localized population density issues (overloaded infrastructure, etc.) to keep these sports arenas operational. Terrible deal. Those are private business facilities, and they are not entitled to tax money.