Rather humorous that someone who says he lives in San Diego says it's ME who's assuming things about Bangor, after all I live right in the area and have many friends and relatives living in Bangor and I'm there just about every day.
You haven't contributed anything to the new arena because it hasn't even been decided it's going to be built. Even if it is, only a small percentage of the money you managed to lose playing slots would end up paying for the arena, a very small percentage of the amount that Bangor property owners will have to contribute over the life of the loan. Besides unless you are trying to argue that every tourist who comes to Bangor and loses money playing slots should have a voice in whether the city undertake a major construction project like this, your losing money there is irrelevant.
It's common knowledge here who pays for all Bangor city projects, unless they are for something that's eligible for federal or state money, no link needed. If you lived here you'd probably read/hear the local news and would already know that there has been no talk of the feds or state coming forward with any cash. If private investors wanted to build a big new arena, that would be great, but it's not the case. Bangor taxpayers will be responsible for the cost of the thing, and know that any "guarantees" of income from HS could fall through, leaving the taxpayers holding the bag for the whole amount and that's why most locals I've talked to are against it.
I didn't like cimbolleks boring style of basketball any more than you did, but I do think it's only right that those who will ultimately be responsible for paying for this project be the ones who decide if they want to take on that debt or not. If you feel strongly about this issue, I'm sure you've heard the old saying, put up or shut up, so I suggest you buy some property in Bangor and declare it as your legal residence and vote!