SSD – When will the prices come down?

The price per Gig of SSD Drives is too high. I was reading about the performance gains of the MacBook / Pros reported by Macworld and couldn’t stop thinking why haven’t SSD thrown the old spinning HD to the history shelves? Usually when a new technology is so much better the the old one it just replaces the old one. Look at CDs and K7s for example, or MP3 based players vs CDs and vs Mini Disks. So, why aren’t SSD totally replacing HDs in computers? Are the prices being kept artificially high so companies can milk early adopters?