When Ebooks first came (in the 90s with the rocketbook), I expected books to be readily available and at a reasonable cost. But DRM and hardback prices for an ebook kept me from purchasing a single book (I read a lot from Gutenberg). Needless to say, enough others felt the same and the rocketbook failed.
When the second wave of ebooks with eink and better prices came along, I still bought very few books (I won't "buy" a book with DRM). Eventually, I ran across an indie author with a good story, reasonable price and no DRM. Poking around, I found that he was not alone. Those authors got my money and continue to do so today.
I have yet to buy a DRM'ed book, I have downloaded quite a few "free" DRM'ed books, but I strip the DRM and convert to epub (changing the font at the same time). At this point, a book that is traditionally published already has a strike or two against it. Between a high price and DRM, there is little chance that I will read one. Even the "free" books, if they are first of a series and the rest are DRM'ed, I usually don't bother with it.
There are a couple of publishers out there who are starting to catch on and are releasing their ebooks DRM free, but those books still usually 2 to 5 times what the indie authors are charging. The ebook industry is certainly changing and continuing to grow, it's just the publishers that aren't.