Anyone hear new Antique Sound Labs "Hurricane"?

I have them in my system right now for a demo. These have upgraded KT88s, wiring, and input tubes. Extremely good amps, especially for the money. Detail, soundstaging, imaging are right up there with the best I've heard.

Does anyone know how long the KT88 tubes last in this amp? What does it cost to replace a set? I am not looking to purchase, but having read the TAS review I became curious as to what it costs to keep these things up and running. It would seem to be a costly proposition.

Chinese KT88's are in the thirty dollar range each, so even with cheap tubes you're looking close to five hundred bucks. I'm in AZ and that many tubes going at once would only leave me with three or four months it could be used. The heat output should be tremendous. With that many tubes on a small chassis, it must be a thrill (trepidation, fear?) every time you reach down to flip the power switch on!

I tried to post this yesterday, but it didn't "take":

There is a previous thread (scroll down to 02-15-03), and another previous to that, if you'll look in the Archives.

Be sure to "read between the lines" on all responses, if you get my drift.