When do you turn off the tubes?

True for most amps , there is no really NOS stock  and much of what is availiable is fake .
When the power tubes on my little 30watt Cary go, thats the end of tubes for me .Guys say this and that 6550 is good but if you ever owned a quad of Sylvania from the 50's you know they ain't .

I think it's a really bad idea to turn a tube amp off while listening to it. That's just me maybe, but it seems to really effect the sound.

when you quit listening 
When do you turn off the 
lights in moms house ?  

When an output tube blew in my Rogue Cronus Mag. II, a while back, I called Rogue to get advice and order a new set of KT-120s. Rick told me that I could expect to get about 2000 Hrs. from a set of the KT-120s and several thousand from the input tubes. Since I listen to my music for about 40 - 50 Hrs per week that would be a new set of tubes every year - even If I faithfully turn off at the end of every secession. Rick told me that there is no sonic advantage to a warm up of more than 10 or 15 minuets on that amp, so, in lieu of cost and headaches, I'm being a bit more mindful of shutting it down between listening sessions...Jim

Common Sense or Voodoo ?