I imagine that if I wanted a little more DR from a Canon sensor ( something that I don't), I could just buy a Sony camera body and use the Canon lenses I already have. This would be a lot cheaper than switching from one system to another chasing after the latest technology. The thing is that everyday we have Canon users switching to Nikon, Sony, and the rest, and at the same time we have Nikon users switching to Canon, Sony, and the rest. Sony, Fuji, Olympus, and several other camera manufacturers are introducing a lot of competition to the camera market, and that's nothing but good for the consumer.