Then you're not necessarily thinking it through.
You're saying that paper costs and distribution is a major portion of a book's costs. That's not the case. Publishing is a labor intensive industry; it HAS to be, given that it's authors and editors as the main cogs. Ergo, that's where the cost is going to be.
If The paper, printing and shipping isn't pricey, why do they keep on printing on shabby paper with bad bindings even in hard covers that are pretty costly IMHO?
And often paperbacks are only 1/3 of the hard back prices, so either they are making a lot of money out of these hard backs or the printing, paper and binding costs are not as low as you thing they are.
Distribution, transportation, risk of not selling them, paper, printing, binding and all the things in between can not be cheaper than reworking an already digital file into an PDF or alike format. And every book written these days is a digital file when it is processed and printed, even if the writer used a goose feAther.
I have my own solution, there are just a few (less than 1500) ebooks in Dutch that I can buy, at rediculous prices. So I buy second hand cheap paper backs that I know I like, cut the spine out, run the through my simple adf printer/scanner, get n PDF file and have my own digital book.
And that is another problem with ebooks, I can get cheap paperbacks at 2 or 3 bucks each, in fine condition. But the book that my father read on his iPad can't be given to me like any cheap paperback, without breaking DRM.
And in that light I think the ebooks are really ridiculus priced. Only one person can read them, you can't share them with friends and you can't sell them second hand, but you need to pay the hard back price for them and sometimes even more?
That all being said, I love reading late at night on my iPad, just hanging lazily in my hammock.