Are all of these NOS tube inventories real? How have we not consumed them already?

Also from upscale, I recommend the Matsushita 7DJ8

@dill I concur the Matsushita 7DJ8 is an excellent tube sadly it's increased quite a bit in price from $35 to $50 per tube. My preamp uses 6 so it's now sadly out of my price range, at least these days.

Thanks all. Yes I was asking about new old stock not NIB. The whole NOS moniker seems to be everywhere from 5-6 large scale retailers and many other smaller specialists. 
I was able to get what was listed as new old stock circa 1969, with measurements and a taxonomy of the screen printing on the tube that I cross verified prior to purchase, and after 4 days use it really is beginning to sound amazing. 
Ironically though, after buying what was marketed as a single item, the dealer has more... so I thought hmmm. 

I just bought a pair of NOS Mullards 12AX7 from Upscale Audio 2 weeks ago where they are rated in four diff categories and priced accordingly. Anyway, I was told you better grab this pair quick as Kevin only has 100 pair left and then that’s it!. I was like wtf? 

@dill I also agree about the Matsushita 7DJ8. Upscale is good. A little pricey, but they definitely do their due diligence with tubes.