Reading this thread, there is one question popping up again in my mind: does the change from Canon to Sony to Nikon and maybe back to one of this list (if the specs of a new camera are too mouthwatering) improve anyone's photography? I doubt this, given the fact, that today's tech is so good that most probably the (non-pro) photographer himself may need some brainware upgrade, if he is not satisfied with his results (I stress the masculine gender, because according to my experience, women are less prone to GAS and more interested in improving their photographer's skills). But that's just my humble few cents here...
No, newer and better tech or switching brands doesn't necessarily result in better images. BUT it makes it easier for u to do the job u supposed to do or the result u want to achieve.
Different ergonomics alone can make a huge difference, especially considering the amount and placement of buttons and other control elements. When shooting a wedding or a sporting or other live events – u don't get any second chance. u need to be able to control ur settings fast, without even thinking about them.
its the same with everything else. the
chance of hitting the very perfect moment in a uncontrollable live situation is increasing dramatically with higher fps.
So yes - in the end it is still the one behind the camera who needs needs to know what he ist doing, the picture still won't be good if u don't now how to expose or compose or whatever. But the tech can help u with making it easier and faster to work with which increases the chance of getting better shots, IF u did choose the right one for the job u want get done.