This article got me thinking a little bit:
Particularly, "The price of mainstream 4Gb SLC (single-level cell) NAND flash memory chips has fallen 73 percent since mid-August to $4.96 late Thursday."
A 4 GB iPod costs $150.
Obviously, there's a lot more there than just a flash chip there, but the premium you currently pay for increased capacity is interesting, nonetheless. I'm betting we'll be seeing some prices drop for media players pretty soon.