Most electronic parts are dirt cheap to manufacture. The rule of thumb is to sell high end audio for 6 times its manufacturing cost. This includes the building, the electricity, the parts and cabinets, etc, the labor and insurance, etc, and a doubling of the dealer cost for the retail price. Despite these margins, many companies gloriously exceed that margin. When a $300,000 Ferrari costs $160,000 to make, that $140,000 profit to the maker seems like a lot, but when a $10,000 amp costs $3000 (if it is a good one), to make, we barely flinch.