I agree, charging for a seminar, you can ask for $5,000 for a weekend seminar, most e-books are scams, and unless you have a popular following, you wont be able to make any money from it.
Of course they won't trust if book looks like "just another crap". But if people are 100% sure this system works, they will gladly pay $500 for simple ebook.
I think you should keep your strategy for yourself. Just duplicate it to more than 1 sites. Wash, rince and repeat. Like that you'll make as much money as you like for yourself.