Why are xD cards and Memory Sticks more expensive than SD cards?
A. Both xD and Memory Stick are proprietary storage solutions, hence the more expensive price-tag – they can often cost three times the price of a comparable SD card for example. Previously, memory cards could be pricey but the increased demand for portable storage solutions has seen the cost of most memory cards drop considerably in the past 24 months. Generally you can pick up a 2GB SD card for less than $20.
