Questions about CF speeds

I've been reading up on compact flash speeds for cards in the 1-2gb range.
While shopping online I came across two Kingston cards which seem to be mismatched with their pricing:

Kingston 1GB Elite Pro 50x - $58.50
(speed is listed as 5.2 mb/s)

Kingston 1GB CF (nothing special) - $53.89
(speed is listed as 33x and 6 mb/s)

Why would the "Elite Pro 50x" be more expensive and have a slower speed? "50x" should be faster than 33x, but the mb/s is listed as being slower.

http://www.robgalbrait​h.com/bins/multi_page.​asp?cid=6007

The "Elite Pro" would be faster than the reg 1GB, I'd think.
Could be a crapping wording or outright mismatch/mistake by the vendor.
Check out the link and check for your camera.

I think it is wrong wording.