If you are good at something and the customer doesn't really understand the process then you can make it look easy, and no one wants to spend a lot of money to pay someone to do something easy. But if the customer knows what it actually takes to solve the problem, the real value of having someone else do it is much more evident. Even if you feel like what you do is easy, there are people out there who consider it indistinguishable from magic. The uninformed are impressed by the magic, the informed are impressed by the magician.