I've got one (Filco Majestouch 2 Ninja Tenkeyless with Cherry MX Reds, model FKBN87MRL/EFB2) and am typing this post on it right now. It was brought into the USA by someone who had picked up a couple while in Japan and sold the extra(s).
Paid a very reasonable $150 plus shipping, and no, I wouldn't have paid a penny more, knowing that they'll likely be $139 or $149 in a month or two from various sellers.
Yes, it was worth every penny. My other keyboard is a much-loved Deck Legend with Cherry MX Black keys. The Filco is much easier to type on, but the difference isn't as earth-shattering as many have made it sound. Yes, the Deck's Blacks did fatigue me while typing over long periods, so that's why I got the Filco's Reds. I still consider the Deck Legend to be the finest LED backlit keyboard in existence, especially for its tough-as-nails PBT keys which have not shown a bit of wear in years of use and also for the extra circuitry that remembers the selected brightness level even when the keyboard is unplugged. If the Legend came with Browns or Reds, it would be the only keyboard I would ever buy or recommend.