It very well may be that several thousand Jazzettes were sold from 1967. I don't have access to Ludwig's sales records for the years in question. But there were a few concentrated years when I searched everywhere for them. I found partial "almost Jazzette" kits everywhere. I found kits being called Jazzettes that weren't Jazzettes...and yes, there has been excruciating discussion over the minutiae of this already.
It's not worth $8K to some of us, but my contention is that it is equally ridiculous for any of us to speculate what the actual value of such a thing should be. To me, someone professing that it is worth $3K, or $1500 or $5327.91, etc. but not $8K is somewhat perplexing. Who draws the line other than seller and buyer? I've seen drum sets sell for lots of money because they are unique and rare.
No matter how common Jazzettes may have been or how many were actually sold, they have somehow managed to disappear from most radar screens. I know that not everyone frequents internet drum discussion forums, but it's hard to believe that in all these years, I've heard only a handful of stories about them or someone who knew someone who knew someone who had one. Maybe lots of them were sold and then got scrapped for one reason or another. I simply don't have the answer to that. I'm pretty sure there are other unknown Jazzettes out there...but as clean, complete and "right" as this one?....maybe not so many -like a fraction of your fraction! :)