It's generally accepted that you get what you pay for in this world, but I guess that depends on what you're buying.
When you're buying clothes, for instance, you might expect that a $60 pair of pants will last longer than a $30 pair, but that isn't always the case. That's a rip off if you're only looking for a functional pair of pants, but some folks are paying more for prestige and a designer's vision than just pants.
However, there are some services where the old aphorism seems to hold true. And as one woman discovered, photo retouching is definitely one of them.