No offense to him as I'm sure he loves this thing, but I can't see anyone paying that much except for him...
Couldn't he buy it from himself and use it as a tax deduction?
I have to say, though, I wasn't aware that the "holy grail of keyboards" had Croatian diacritics. Is there a particular reason for that? Did Cherry start up in Croatia, or was there some pivotal Croat KB innovator ? I'm trying to grasp the connection.
He bought it to "confirm colors" for the TA GB and stated that he spent a considerable amount on it. Since he did make money on the GB, it would make sense for it to be partially written off on taxes as a business expense.
The diacritics are there because that's the region the board was made for.
Personally, I wouldn't pay more than $200 for the board, regardless of how rare it was, especially since ABS gets more brittle as it ages. If I was to drop big bucks, it would have to be on a dyesub set.