What is going on with (vintage??) Maths ???

I have seen all kinds of gear being declared vintage or rare over the last few years, to justify a higher price level. the latest i noticed was the vintage makenoise maths, with prices around 5/600 up to 900 and even 1100 ($ or €)

wtf??!! is it so much better than the newer and current model, to justify a price for used modules that is 2,3 or even 4 times the price of a new Maths?

Am i missing something?