I got the PSVanes a few days ago. I think they sound great, even brand-new. They're well worth the price. My favorite tube combo right now based on what I have is the PSVanes with the Telefunkens.
Totally agree. With precious and expensive NOS tubes, I get nervosa while burning up hours on them. But with new-production tubes, I don't mind so much if I leave the amp on for longer periods of time for passive listening, etc., since I know it can be replaced more easily.
Just in case someone is looking for a Nirvana mk3, I’m currently listing mine in classified, and currently having a limited time deal for Independent Day with a really good price for a pretty new unit!