I dunno, spinning disk drives are ridiculously cheap these days. 160GB Laptop drives run ~$40 USD. The same price for SSDs will get you about 8GB of storage. It's just not comparable.
It might depend where the price breaks are. If you are buying one or two at retail then you are probably paying a large mark-up for the buzzword "SSD". Buzzword mark-up is not as significant if you in the market as an OEM buying in bulk.
