Here is my flow -- #1 I expect to be able to read extensive excerpts for free. Table of contents is not enough, because I want to know how that one section is

Here is my flow -- #1 I expect to be able to read extensive excerpts for free. Table of contents is not enough, because I want to know how that one section is more than a few paragraphs. #2 I buy the ebook and start reading it. If it isn't Kindle it must be DRM free. #3 If I finish the ebook, and I find myself continually referencing back to it I buy the print version. #4 If I think the book is really good, I'll buy anywhere from 1 - 10 more copies to give as presents. Doesn't happen often. I don't want a print book taking up space unless it is collectible or for reference.