Expensive != Quality.

I learned this recently. Price is a signal of how much one party values something. Spending money can be a signal of how committed someone is, a way of showing that he knows he'll make the money back. Or it could be that the cost he's paying right now is peanuts to him. A high cost doesn't automatically mean you're getting what you pay for.

Free personality tests are more reliable and efficient than the paid variety

A “Chef” Fools Diners Into Preferring Inferior Food