SD card price continously dropping

I went to Golden Shopping Center today, and once again found the price of Toshiba blue 2Gb SD card dropping. It's selling at HK$129. Someday these cards will be as cheap as floppy in old days. Scary ...

But something puzzled me. I saw the Toshiba 4Gb SCHD card selling at HK$399, which the 8Gb was selling at HK$799. Too bad that they are most probably incompatible with my Dell PDA as described here. Guess I may need to buy multiple SD card instead ... so inconvenient.

Continously seeing people buying Nintendo DS Lite. And then Wii. A lot of Wii :-I .... tempting.

8Gb CF seems disappearing from the shopping center. I wonder why.