pwp said:
There is no such thing as a perfect camera, though the MkIV ticks an awful lot of boxes.
Sure, we would all like a car that had Audi styling with a Subaru motor, Volkswagen seats and a Mercedes steering wheel, if you get my analogy.
Definitely there are a few specs on the 7D that would have been cool on the MkIV but really, isn't it all about getting out there and producing great images for your clients, your Flickr page, your lounge-room wall or shots of your kids for their grandmothers Brag Book?
I like cameras that I barely have to think about, that I understand completely and know will deliver. Better cameras will be coming along soon, but right now the MkIV is a mostly brilliant, tough as hell camera which is built to hack the daily grind and deliver the goods day after day.
Paul Wright
I think I get your analogy, though I've always been a Chevy guy

Thankfully the 1D4 isn't -quite- like the GM vehicles I've owned lol. The point of my OP was to try and understand why so fewer threads seem to get started for the 1D4, and all those who replied confirmed what I suspected (statistically fewer 1D4s [price], it just works, etc).
Like the 1D models before it (even back to the EOS 3), the 1D4 is just a great workhorse.