Aren't good shots those that are poured in glasses?
Anyway, it's the handling of the camera that gives good images. Of course there are advantages with new cameras, but the first thing to do when you need to improve your images is not to buy a new camera, but to analyse what can be done to improve your technique and vision. Good images is much more about lighting and composition and the camera comes a fair bit down the list. The most important feature is a few inches behind it.