I agree with the comments posted! I believe camara manufacturers are complicating things for no reason. Try using the car manufacturers model, in my mind reducing the choices actually equates to more sales! Hey with all this confusion, I've kept my S300 for the past six years! Don't fix what ain't broke. In my case, it broke. :
Econo box = small point'n'shoot, no manual/extra features, simplicity at it's best, ex SD40
mid-range full feature = AA power, great lense, mostly automatic with some manual features, paying for flexibility not size, ex A-series
mid-range compact = ultra compact, pay for small size but good automatic features, pay for the compactness, ex Elph series
high-end = long lasting battery, awesome lense, IQ unquestionable, fully automatic, and full manual options, G series
ultra-high-end = anything SLR
In my opinion anything outside of these options only serves to confuse consumers. There is already enough confusion out there with the different manufacturers, it's hard enough to narrow the field by manufacturer, let alone to the specific camera. With Canon's current strategy, I will NOT purchase a new camera just because I want to keep up, I will buy what I need. Similarly how people used to buy 35mm bodies and handed them down to their children!