I've made several purchases from John in the Home Theater department at the Pasadena Pacific Sales store. Unlike the salespeople in most multi-line retailers, John is knowledgeable, friendly, and has a great low-pressure demeanor.
While they do carry a limited selection of brands, John is aware of comparable brands they don't sell and can speak intelligently to help with buying decisions. To date, he has beaten any other vendor's pricing on any product I've been interested in, and typically by a significant margin. Great service and the best prices. Seriously.
Their hours are not the most convenient - they close earlier than most and are not open Sunday or Monday. However, it's consistently worth making the time while they are open. We'll continue to give them our business.