Can confirm, the "just charge a lot up front for good quality" strategy doesn't work very well. In retrospect it's obvious why, the client will always find other people promising the same results for less. Actually delivering, different story. Having been right doesn't do much for your bottom line, unfortunately.

The only way to maybe make it work is to sell to people who know what they are doing, but that gets dangerously close to the "I could have done that myself easily" territory.