Hello I have a theory that unicorn knives such as Kato (shigefusa also following) are a dying breed and stay desirable while 1. The maker is alive and well 2. While there are enough knives being sold on the market to keep the maker popular. 3. Prices stay fair and true to quality. From what i see the Kato hype seems to slowly die off since more and more kkf members are selling their Kato collections and turning to alternatives which are more easy to find and on par with quality. I think that the fact that just a couple of vendors have monopoly on his work and control the price and sales volume is slowly killing his good name and popularity in the knife community. Just compare reviews and articles from 2015, 2016 with the ones from 2018 and 2019 on this forum and you will see same people going from hype to dissapointment from wtb kato to wts kato.