I agree that I think it's the price as well. I think the D300's were flying off the shelves because they were priced low enough for the average consumer to splurge on the camera and not feel too bad. Now you're talking about almost 2x that amount for a D700. Yes it is full frame, but there are still a lot of people out there who are hesitant to spend $3k on camera equipment. I know my wife is! :biggrin:
Although, I think I will rent the D700 first to try it out, and then I'll probably get one in a month or two before I have to shoot a wedding in November.