Most likely because that is a very popular pistol, so folks can get what they want as long as it's reasonable. But do not be put off by that, Do you want strictly a NIB pistol or will a used one be ok? Check out the Auction sites, you can find what you are looking for with a little time and patience. It's a sign of just how bad the economy is when you find used pistols going for close to new pistol prices.
Also if where you live allows them, then hit every gun show you can find and get to easily, and with a bit of luck you will find what you want for a price you can live with, new or used. Just remember to dicker, haggle, negotiate it's expected and all they can say is no.