I can confirm that they're not out of business... They moved from San Diego to Arizona a couple months ago, and I believe they changed their legal name slightly. Unfortunately in the process, it does look like Ken moved on - one of their top tech guys - but hopefully they have plenty of new people. I've spoken with them on the phone since the move a few times - especially since I'm considering using them to outfit my new 6200 sq ft house again.
Make sure you're using their correct phone number off their website - I'm not sure if they changed numbers when they moved... also when you call, there's no auto attendant so if they're all busy, it'll probably go to VM.
I get the impression they're still a small group - but they do seem to still be out there.