This moderate price is evidence in favor of the theory that some models are mainly sought by collectors and not users:
https://www.ebay.com/itm/141881510831
For curiosity; Wilk sticky
Re: For curiosity; Wilk sticky
With regard to the very high prices for some older multi-blade Gillettes, I suppose it is collectors, since this Sensor razor has a moderate price:
viewforum.php?f=6&sid=fbc2d7a796a115facb515a815cf5b1b7
viewforum.php?f=6&sid=fbc2d7a796a115facb515a815cf5b1b7