I'm seriously wanting to upgrade my camera body due to the horrible noise with high ISO on my current canon 7d. When I shoot my daughters dance competitions are the only times I need to use the higher iso. (no flash allowed during competition so my speedlight is not an option) I'd love to go full frame and do have the glass to currently support that. I am really wanting the 5d mark iii. But I will have to save awhile longer. I have thought about the 6D but afraid I will be disappointed with the image quality at a higher iso. Currently my game plan is to rent the 5d mark iii for the occasions I will need the higher iso then upgrade when I have the money. Would the 6D make me happy and save the money on renting or should I just continue with the game plan. I will only need the higher iso 4 more times this year.