Based on your experience with the 700x and 1000x cards, did you find that you are able to shoot faster in burst mode with the faster card? That may sound like a dumb question, and maybe it is, but I wonder whether the camera buffer will actually process the files any faster than the 800x will write. I don't understand the technical aspects of this. However I do have experience with overspending on various camera and computer equipment, only to find out that a less expensive item would have worked as well as the high dollar item I bought. That is what I am trying to avoid. If the 1000x actually enables one to shoot faster with the D800/E I will buy it. I don't mind spending the extra bucks if I get something for my money.