I've been doing it for over a year after selling my lease before expiry - I don't see why I'd ever buy a car again since my monthly cost (assuming I rent all 4 weeks) is about the same as it was, and quite often I don't rent for a week or more when I'm out west, saving me even more.

One thing - anything who does this absolutely must get a non-owner's liability policy from AAA and a credit card that provides primary damage coverage, or sign up for the KLM FFP and use their code that includes full coverage.