The MacBook line has been a mess for years now. There was a bad point when they had retina and non-retina versions for the whole Pro line. The iPad line is becoming pretty nuts. They simultaneously advertise the iPad Air 2, the iPad Air, the iPad Mini 3, the iPad Mini 2, and the original iPad Mini. Even iPhones are starting to suffer from this. It used to be obvious (either pick the best, or decide how much less you want to pay, then buy the one at that price) but now you have to figure out whether you want bigger or smaller, better camera or better pocketability, etc.
I like having more choices, personally, but Apple used to have a much more streamlined product offering.