When I say its not overpriced I mean that from a market and production perspective. Apple is the only company making a profit on tablets, because they move a large enough volume. The other manufacturers couldnt build theirs cheap enough, this was well published. Its not an "opinion".
Same goes for the screens. Sharp was supposed to be a supplier but they couldnt produce enough numbers at a good enough quality. This too was well published- look up IGZO panels.
Trust me, Apple was the only company moving enough product to make these displays a reality. They invested billions into display manufacturers including Sharp, look it up. Apple wields an incredibly big stick in the industry, they make these advancements possible from a production standpoint and thats a fact. Everyone benefits.