For anyone looking, here is a slightly used complete BTS kit on Yahoo Japan Auctions with a "buy it now" of $970, based on current exchange rates, not included fees and shipping. I have seen these on there for a couple weeks and it looks like the seller is trying to get rid of them because it is now the highest bid that wins, with no reserve. I am sure they will go up from the 20 cents they are at now but probably top out less than $800.
http://page7.auctions.yahoo.co.jp/jp/auction/g133484787