A lot of people still don't have tablets. rarely a week goes by without someone asking me which one is best. I just say I dunno

, but if I had to answer I would say IPad.
Not because I think it is better, but because I have never personally heard anyone say theyregretted buying an Ipad. I have heard many people wishing that they had bought an IPad after buying something else. A lot of people I know jumped on the Samsung Galaxy Tabs a few years ago because they were much cheaper. Within 6 months most bought Ipads.
As to pricing and competition, Apple only has one major competitor, which is the whole Android tablet market. Android tablet makers have to compete with Apple and each other.
If Apple can sell a new model every year at slightly higher prices than the year before then they are doing extremely well. I expect a desktop or a laptop and even a tablet to be useable for at least 3 years. Sure I've upgraded sooner but only for tax reasons.
As for greed with the memory, maybe it is. Or maybe the 32G model is the base line and Apple figures they are taking a bath by providing a 16G model $100 cheaper so people can afford one.
I don't own an Apple product and possibly never will. Just saying I have never met anyone who regretted buying one although I am sure they exist, and I have never seen anyone drooling over the latest Android tablet that someone else is showing off, where I have seen plenty of that with Apple products.
Helen