My preamp and power amp both use 6SN7GTBs and I've wound up with piles of new versions and NOS that should last a decade or more. My power amp can operate with anything from KT66s to KT170s, only uses 2 power tubes at a time (single ended pentode Dennis Had Inspire "Firebottle") and I also have a stash of various power tubes (some barely used as their initial tone wasn't "all that") to get me by until things calm down or blow up...so no hoarding for me! (my stash was caused by tube rolling compulsion, not the desire to hoard...but still...no worries here, except of WWIII I suppose).
The panic selling of tube audio had begun.
I think it is a bit crazy. I run tube gear sometimes 12 hours a day and hardly ever have to replace any tubes. My tube amplifiers have been mostly as reliable as stones and maybe more so than my SS gear since I've had failures with that. And none with any of the 70 or so tube amps pres etc I have owned over the last 35 years. I design loudspeakers so run my amps much and have to have a wide selection of types. Still while sad for those who panic easily it's an opportunity to pick up low priced tube kit and after a week or so I will most likely be making some lower offers on ads till I get a bite. So if thinking of selling your tube gear because you feel no more tubes ever please do so I have my eyes on a few amps maybe it will be yours.