Rebills, ebooks, whatever, price is still an issue.
Your market isn't as large as you think it is. You basically need an native English speaker, with a disposable income, and stupid enough (just being honest) to purchase your product. You could probably promote to European countries besides the UK, Germany, Sweden etc but there are already opportunities in these areas.
You aren't losing money to fraud directly, but you will most certainly lose it in advertising. People will either buy your product with fake IDs, or just download it illegally. You might make a couple of bucks, but it won't be worth your time.