[LeBleu]

There's no such thing as an artificially high price in an open marketplace. Or, more specifically, it's impossible for the producer of a good or service to set a price that is artificially high.

That's not true. The real world is not the same as an idealized economic model. It is quite possible for a business to set an artificially high price, at least in the short term. In a competitive market, it results in the business getting less revenue, and quite possibly going out of business, but that is not instantaneous. If the price is merely sub-optimal, but not outrageous, it is quite possible that the overcharging business will make enough money to stay around for years.

Even John Maynard Keynes commented on those trying to profit by shorting irrational bubbles, "Markets can remain irrational longer than you can remain solvent." -- if you're a company benefiting from the current irrationality, that means you can stay around until the market returns to rationality. (For example, see Citibank, Lehman brothers, etc....)

This is without even accounting for the fact that these services are usually not pure commodity markets. They are in monopolistic competition (http://en.wikipedia.org/wiki/Monopolistic_competition), sometimes with only very distant substitutes, giving closer to monopoly control over their market.