Our previous neighborhood had an HOA and it was obscene. They sent obnoxious letters all the time for the tiniest thing--weeds growing in your lawn (dandilions), hedges not trimmed to the exact measurements, etc. When we bought our current house 6 years ago, we were very specific about not wanting a neighborhood with an HOA.
Now, I would do anything to have one. We have a crazy next-door neighbor who has singlehandedly ruined property values on our street. They've lived there a little over a year. In that year, they started painting their house and stopped a quarter way through it, they added an addition and stopped before it was complete, they have an in ground pool that they drained and use to throw junk in. They have car parts all over their front and side yard for 2 cars they are rebuilding. They have a ton of people coming and going all the time, it is just a total disaster. This was our dream home, and we can't even sell our house because who would want to live next to this?