I would think the 2201 would have been unmarketable, which could be why it was never marketed. :) Amar Bose was rather successful with the 901, though. And certainly with the Acoustimas systems and the Wave-this and Quiet Comfort-that. Marketing might get you a flash in the pan, but engineering and customer service can get you products that last over 45 years in the marketplace (901) and a multi-million dollar success story with legions of fans.