Eventual expat here (clock is running on citizenship elsewhere through an investment program). I would not recommend filing your taxes yourself if you're a non-US resident with citizenship. It's cumbersome because of mechanizations to prevent tax evasion. There's room for improvement, but expats have very little pull congressionally in getting reform done to improve the experience. These fees should also be made deductible (tax prep fees no longer are).

With that said, $1k annually is a small price to pay to maintain your US citizenship through annual tax filings. The benefits (imho) outweigh the cost (employment access, residency, repatriation).

Tangentially, this sounds like a startup opportunity.