Constant noisy tubes maybe go solid state?

facten

Help me understand why you think you need to be wary of NOS in white boxes from reputable tube dealers ...

Most likely, if it’s shipped in a white box, it isn’t New Old Stock. Rather, it’s a used tube in a plain white box.

Some tubes were shipped new by the manufacturer in bulk without an individual box, but they’re the exception.

As far as the QS is concerned, my
previous was a Schiit SYS. So while I think the QS sounds good I don’t have any frame of reference. The high gain of the Odyssey made the Sys seem logical (though it was a stop gap). The SYS. Worked well and sounded fine. In the Odyssey forums it seems most pair with tube preamps and I wanted to get into tubes (the QS is my first piece of tube gear) so I guess I’ve been lucky until now. I would like to make my next purchase a tube phono stage and maybe even add a tube amplifier as an alternate. But maybe I’m not ready or have enough electronics knowledge.
I suffer from anxiety while also working 1 full time and 2 part time jobs. So when I can’t just take a couple hours and spin a few sides I get nuts. I’ve been lucky up to this point so I’ve leaned a lot. 
As an aside, anyone who upgraded from Quicksilver line stage I’d be curious as to what you upgraded to. 

Could be. Likewise as long as long you buy from a reputable dealer and he insures that the tube tests unused and measures within industry guidelines it is NOS

facten1

... as long you buy from a reputable dealer and he insures that the tube tests unused and measures within industry guidelines it is NOS ...

NOS = New Old Stock
Used ≠ New

@cleeds I agree with this 100%.
Interestingly, in the tube re-seller world, there seems to be a propensity to label tubes as NOS. These very tubes are in fact used and measure as if new. I guess if one questions how many tubes from the 1950’s -1970’s have survived brand new in a box (that have NEVER been inserted into a tube socket), the answer to what is going on becomes more clear. Not saying i totally agree with the practice, but how many times has one bought a NOS tube and looked at the pins to see that they are brand new....I know I have bought these from so-called ’reputable’ tube re-sellers and the tube pins are anything but brand new! I was disclosed that they come in an original box ( mostly) and they test as new. ( which is also a ’relative’ term).