I honestly thought I was the target audience, given I have bought mech keyboards, use them all day and want to buy more. So, in my book, I'm a real prospect but, yeah, maybe there's an even smaller niche.
I've never bought a mechanical keyboard but I'm a designer and the aesthetics + promise of a more tactile experience has me interested. I don't have a lot of comparison points or references beyond "MacBook butterfly keyboard gross, magic keyboard good".