I ask why does an iPad need to cost so much.
There is no real baseline against which iPads should be measured.
Conversely, ebooks can be compared to pbooks; then we can say, if x is a fair price for pbooks then why does the same product as an ebook cost about the same when there is less cost in producing?
iPads are considered to be a fair markup because they established the price first, and there were no comparable products that had a lower margin.