I ordered 2 16gb 600x Kingston CF cards last week and they arrived only yesterday morning. Each cost me 110 Swiss francs (about 75GBP). I've been using it and the performance of the cards are great, using my Sandisk card reader the transfer rate from CF to computer has a rate between 140MB/s to 50MB/s with USB 2.0. The reverse transfer rate from computer to CF goes from 60MB/s to 30MB/s. Files were transferring at speeds I've only seen between 2 internal 7200rpm high performance hard drives.
Was out in the streets yesterday and went into a camera store and out of curiosity asked one of the sales people what the price of a Sandisk 16gb 600x CF card is. They showed it to me and the price was 250 or so Swiss francs, about 170GBP so I asked why they only carry Sandisk when something like Kingston is cheaper. The reply I got was because Sandisk offers memory recovery while other brands like Lexar, Kingston, etc does not, and some other stuff about how it's an industry standard and used by professionals. Which isn't true as Kingston does offer a Data recovery program for free, and the activation code for the program is inside the piece of paper that comes with the plastic package containing the memory card and Kingston makes a lot of high performance memory components for computers.
PS: Sandisk 16gb 600x CF card costs about 250 CHF locally, ordering online from the same store as the Kingston costs 180CHF or 121GBP. Never will I shop for overpriced Sandisk cards again.
Also, a Kingston microSD card that I bought for my phone, some months ago I took out that card from my phone and put it into the USB adapter that came with the card and forget I had it in my pants pocket. I put the pants in a washing machine and it must have somehow gotten out and ended up staying in the machine for a few wash cycles. Needless to say I found it and the USB adapter had become useless and damaged but the microSD card was still usable and is currently working very well. The data remained intact.