One of the primary things to remember is that not only Crpyto people have been collecting these.
From the few Stamp dealers and Collectors I have spoken to so far, they were quite the hot property even in Philately circles.
Add in the buy pressure from some avid Crypto collectors and numbers sold real fast. Saying that though, it was a surprise to discover how many collectors did not even know about these Stamps.
AS for the QRG tokens, all fair comments and yes, to reveal the serial reveals the Tokens as the QR code only takes you to a site.
I'm not that personally bothered about the QRG (shit) token itself, although I do clearly agree you would want the tokens to remain with the stamps, so on-selling the stamps with their full integrity will be one to watch out for in the future. The same can be said for all these new wave of Crypto Stamps I reckon. And yes, your advice about reputable sources is valid. eBay, as always, carries risks and disappointments
No word from chupogoL yet
Cheers
Viz