I chose Sofia, Bulgaria. I pay about $500/mo for all my expenses. It's true that I could find that in the US as well, but I'd be hard-pressed to find something that isn't deeply rural.

In Sofia, I'm in the capital. There's lifestyle necessities like grocery stores, fast internet, etc. Plus I won't need a car because of the excellent metro. If I want to catch an American movie or a show, there are malls/theatres. It really has just about everything I need.

It also helps that my wife is Bulgarian.