I wouldn't pay that much for them either, however the people who are paying those prices are doing this as a business. Ask any business person if they'll spend that kind of money on a new machine or a new truck or anything that has the potential to earn them some future profit and if it makes sense for them, they'll pay the money.
However, my personal opinion is that the price is still too high. There are so many out there now in private collections that I think the price will come down quicker then many might think and the people paying those kinds of prices now will be taking a lot longer to recoup their original investments then they may have planned on.
I guess we'll all just have to wait and see what happens. Some people will make money, some people won't and those of us who just like some cool new toys to play with will get them eventually.