NAND flash manufacturers have been promising lower prices for solid state drives (SSDs) for quite some time now. We've only just recently seen some serious price erosion on modern, SATA-II flash drives.
Super Talent turned quite a few heads when it announced its MasterDrive MX series of SSDs in early May. The 30GB, 60GB, and 128GB drives have an MSRP of $299, $449, and $649 respectively (although online retailers like Newegg currently stock the drives for a bit less money). The MLC-based drives feature a rather impressive read speed of 120MB/sec, but the write speeds lag far behind at just 40MB/sec.