Not the most ethical of business practices but it is far from uncommon. Every industry does it and only a fool would believe that a hot selling product will be limited in numbers. A business is in business to make MONEY!!! Selling out of your limited edition wonder blaster 5000 in 10 minutes is a sign that more sales are out there. Refusing to offer more wonder blaster 5000's is plain retarded. Same tactic gets employed with "while supplies last" or "pre sales" so you too can be the coolest kid on your block before anyone else. The majority of marketing is BS gimmicks designed to convince the masses to part with their hard earned cash(ok usually credit these days as most are grossly over extended).
CC makes good stuff, but the prices are out to lunch.