You are talking about price variations in computer ram memory, this is totally different and not comparable to flash cards, the subject under discussion. I have never seen flash card prices vary by 50% in a month due to supply and demand.

Flash prices have not fallen as fast as they could have because of market contraction due to the collapse of the technology dot com bubble. This is being corrected this year hopefully.

The flash card market is driven by MP3 Cell Phones, Camcorders, Digital Cameras, and increasingly Bluetooth technology.

SD cards are the newest entrant in the field. The 256 and 512 cards have a data transfer rate of 10 MB/sec at the moment, perhaps 5 times faster than the smaller cards. The 1 GB card due second half of 2002 will double this speed to 20 MB/sec. 2 GB is projected for 2003 and 4 GB for 2004.