There are probably more people like me too.
I've written off my insteon investment and now just waiting for something else affordable to "mature." zwave looks to be the best alternative to insteon, but due to my significant (to me) investment in elk already, I have been stuck in "nowhere land" waiting to see what will happen.
Consider me a squeak.
I to had to dump Insteon as well and regressed to X-10 temporarilly. Funny thing is the X-10 works fine and none have died yet (only about 5 months) and they are all the cheapies (Insteon had over 20% failure at that point). I am on the fence between UPB and Zwave. My brother in-law swears by UPB and hasnt had any problems in any of his installs (yet). I like that Zwave seems to be maturing.
Have you considered UPB or you just like Zwave?