Artisan key caps aren't my thing, so take this as an outsider's perspective.
I think it's gorgeous and a great concept. Considering that people pay more for single aftermarket cap mass produced out of cheap plastic, I don't think it's an unreasonable asking price. Hopefully it will bring enjoyment to some collectors with a lot of disposable income.
For that price you could consider adding actual bling. Here's one of my prototypes with a ruby:When the world of iced out jewelry meets mechanical keyboards; this could be really interesting.Show Image(https://imgur.com/gLdkpQ0.jpg)