Also no fumbling around when at a shoot and still having to change lenses. Oh I need an 85 if it's a 7D or a 135 if it's going on my 5DII. I still haven't had a shoot since acquiring the 7D but I expect I will be doing a lot more thinking if it comes to having to change lenses on one or both bodies. This is not a good thing. I started going through some past shoots in my head and the combination of focal lengths I would need. One thing that popped into my head was, maybe, the need to buy a 10-22.
I bought a 7D because I thought it would add some versatility on a shoot and I also really needed a second body to minimize lens changes. If I was really smart I would have bought a second 5DII, just because the different sensor size is going to be confusing, at least in the beginning until I find a system that works, most of the time.
Although the 7D has some cool features I wouldn't miss them. We'll see.