It's now been more than a decade since digital imaging hit its stride and changed the way in which we do photography. Back in the day, I was convinced that the future lay in Full Frame digital. Then, and even now, full frame was very expensive, much more so than APS-C, and although prices have dropped over-all, it's still a rule of silicon manufacturing that larger sensors cost more to make. A lot more. It also has been a long-held popular belief, by myself as well, that a larger sensor is necessary for top image quality.