The prospect of just sitting in front of TV and going for walks is horrifying. For short breaks, sure, that's really nice. For years? Horrifying.
Solving technical problems is vastly more satisfying than that.
It's like maths to a mathematician, physics to a physicist. Why would they ever stop, given freedom to carry on?
I would love to be able to retire for the freedom, but with that freedom I would want to build technology, much as I do now except I'd choose the things (and they would be much better things!)
(It might be that the kind of programming you do in your job is a very different thing though. I'm not excited by writing more business forms either. Programming is an extremely broad term these days.)