There was a huge reserve of brandnew sealed copies at low prices 7 years ago, but many of them have been auction off or bought up. Ebay, Yahoo Japan, and online stores have sold just about all of them. After two years, most of the sealed copies are becoming rarities.
Blood Gear is at a good price for what it's worth $25, and like GUTS said it is a steal. I'm tempted to buy it because it is an exceptional game and it's sealed.