There's no small church that can't sweep the floor, improve the lighting, take the junk off the piano, etc.
Here's a real truth about church attendance for you:
If I get there and it's crowded and I have to fight for a seat, I'll probably not be back.
If I don't have a place to park my car, I'll definitely not be back.
Those seem unbiblical, but they are practical considerations when there are so many churches to go to.
You also mentioned air conditioning. I guess you haven't been to a church that preaches the real truth then. None of that would stop me from gladly supporting a church that preaches the truth, the whole truth, and nothing but the truth. So, you're wrong when you say "You and me included."
You've been in the military, you can stand a little discomfort/inconvenience. They teach you to put up with that kind of thing for the greater goal. Give us a little credit who haven't been. We aren't all wusses. Those that are you should be telling to buck up, not coddling their shallowness.
Caring for our church property is one way we show respect toward God. However, there is a consumerism mentality in our society that makes it "all about me" rather than worship. If the preaching is real, genuine, deep it should be worth the trouble to find a place to park! Even if they don't have a cupholder for my morning latte as one local seeker church has.