All good ideas.
But there's another aspect you might want to consider. LET PEOPLE "STEAL" YOUR STUFF.
Use your ebook to (1) promote your site; (2) get people to sign up to your list; (3) sell more of your products; (4) sell affiliate products.
Why settle for the few bucks for the price of the ebook, when you can get so much more if your ebook is intrinsically designed to market every aspect of your site/business?
Your most valuable commodity is not your product, or even the money people pay for that product -- it's your
customers. Whether they become your customers through buying your ebook honestly at full price, or by "borrowing" the ebook from someone else -- the end result is that you have MORE customers who will give you far greater long-term benefits than the one-time buyer.
Think long-term growth vs. short-term profits.