Bartex
CAGiversary!
Well personally this is one of the cheapest prices I've seen for a 1GB Pro Duo Memory Stick. The internet superstore, Buy.com have a current discounted price of $35.95 for the stick, however adding to this, SanDisk have their own rebate worth $11 for this stick. This takes the overall price to $24.95. The particular model is the coloured PSP gaming version, SDMSG-1024-A10. The rebate form is available here, and also extends to offer you $12 off a Cruzer 512MB micro, and $13 off a 1GB CompactFlash all made by SanDisk. The rebate for Buy.com is only available till the 4th of June, so get buying!