Lol not just to you, to everyone. If people don't realize that Apple does this almost every year then they're kind of delusional.
Retina, Force Touch, Siri, 128GB/256GB iOS Devices, Haptic, Rose Gold...
The list goes on. Apple does it in one device and sure enough it will roll out to more.
Which makes sense. You invest all that resources in R&D, you will want to get your money's worth by ensuring it is implemented in as many devices as possible.
I would agree with you if Jobs was still alive.But now its all a pure cash grab.We got 4 different iPad models, 3 variants of the iPhone 7 , 3 variants if the MacBook .There was only 1 product in each section when Steve was alive.Now that's simplicity
The Apple of today is also quite different from the Apple of yesteryear. Back then, Apple was on the brink of bankruptcy, so it didn't have a lot of resources. As such, it made sense for Steve to focus their limited resources on products that could bring in the most revenue for the least investment.
Now, Apple is a whole lot larger, and has a more diverse user base. I doubt Apple can continue to sell 1 model of every product and hope to keep everyone happy. I think the current iPad lineup makes sense in a certain way. You have the iPad mini 4 and iPad Air 2 to cater to the casual user, and the iPad Pro 9.7 and 12.9 to cater to people who wish to do more with their iPad and don't mind paying for it. Different users prefer different screen sizes, and different specs to cater to different use cases.