I have yet to hear of any ebook who's content can not be found for free on the internet. Just never been a fan of ebooks.
I never buy ebook, because many of the outstanding ebook does not have quality content. that's what makes me not want to take risks. but I prefer to learn with people who have experienced directly.
This. Every ebook ive seen the information is somewhere on the internet. If you really want it you can find it through using a magic tool called google All I've learned is through various forums such as this one, then putting my own spin to it.
I have over one hundred ebooks. All usually purchased because I couldn't find the book I wanted in a hard copy. I buy them because it is information that will usually help add to my skill set or because they make a great addition to my library. I have several hundred books almost all on business and marketing. I value the ebook or book on the content it provides, solutions to problems it contains, etc. If you stay focused on quality content that your market wants the cost is very elastic. I hope that helps. Paul www.paulmcgraw.com