I put a bunch of insteon gear in a prevous house back in 2008 and had similar issues to what I've read here about the micro switches and sometimes the boxes themselves going out.
A quick search on the forum here does show much recent talk.
Anyone still running them? How are the new units holding up?
I'm building a theater again, and while insteon is not cheap, its still way cheaper than things like the grafix eye (assuming the new units are doing a little better).