NFTs...gah...I got excoriated over on Reddit's r/vaporwave forum by some "true believer" in that because I dared to point out that this is, in all likelihood, some fad-grade nonsense that's just ASKING to get punked by someone well-versed in culture jamming. True, there ARE artists making money via this method (one musical act that comes to mind here is Kings of Leon), but when that bubble pops, look out!
As for the $5k QMMG...clearly, this derp hasn't quite picked up on the fact that Make Noise's MMG is NOT discontinued, and that four of them tallies up to $940 street. Add a very basic mixer/attenuator module that lets you break out submixes (sorta like Intellijel's QuadrATT tile...but as a "proper" module) and you have a...QMMG! Sure, it's physically bigger, but you have the same basic function PLUS a lot more control capabilities over each MMG. And instead of a fixed mixing paradigm, you could just as easily swap the basic mixer out for a quad VCA instead. Given that, I 100% do NOT see the point in trying to shuck rubes over this "RAR vintage W0W!!!111!!1!" module that they want $5 grand for.
This behavior is something I've long despised. I didn't like it when synth-brokers were trying to use Usenet back in the day to run their commercial enterprises (in violation of the Usenet charter and, in one especially egregious case, the Usenet AUP for U Michigan), and I don't like it now. It's become a lot easier to spot, thankfully. But during that early Usenet period, you had all sorts of bottom-feeders trolling around, buying disused synths for pennies on the dollar and then flipping them for sometimes HUNDREDS of times more than they'd paid. And around that time, you also had the emerging concept of "synth collectors"...people who bought synths and DIDN'T play them, simply because they were "valuable". I'm sure that 90% of those instruments are now dead from disuse unless they were "rescued" somehow. Fools, money, etc etc.