I don't have a dog in this fight really, as a non resident. But the reality is that both Worcester and Providence have no issue maintaining a modest, updated arena. Either you are attempting to be a real city or you aren't. There should be something there for the Wolf Pack, the UConn hockey and basketball teams, concerts, Ice capades, circuses etc.
Not having a building of that type would be the death of Hartford. We can't fix what is really plaguing Hartford, namely that it needed to annex Wethersfield, Bloomfield, West Hartford and Newington 120 years ago. East Hartford too ideally.