I upgraded recently from a 350D and getting a bigger camera (grip) was one of the things I was looking forward, since holding a small camera, specially with a not so small lens (17-55 f2.8 or a 70-300) for some time was getting uncomfortable for my fingers. Btw, that was my first camera that I bought when it came out, without seeing it first and expecting something like my friends 20D... needles to say, I was a bit surprised how little camera for how much money I got : )
... and, when the 6D came out, I was just wondering why is (almost) everybody hyped about it being smaller... i get lighter, but I would prefer it being just that tiny bit bigger (after I held it next to 7D and 5Dii/iii)