There is one listed in the 'sold' area on HiFi Shark that was sold for 13,500 yen (that's just a bit under $100). There is also a listing for someone who was selling just the enclosure (here in the U.S.) for $150. Not sure if this helps. Most of the other Welborne Labs preamps typically sold for somewhere between $200 and $700 dollars depending on model (with the passive ones usually being cheapest). Since they also offered kit versions of some of the preamps, having a factory assembled unit should increase the value on the used market.
