When I look at what is inside a digital amp and how little they actually weigh, you have to wonder about the cost. For example, the Nuforce Model 9 mono blocks weigh just a few pounds an they cost $5K a pair. I understand about research and development costs but I bet the profit on that is 60-75%. Years ago I worked for a electronics firm that made the computers that do all the graphic's for TV and I saw the mark up on the parts. In some cases it was 1000%.

And looking at all those fancy cases for the digital amps posted in the pictures of this thread, I would have to say that that is a large portion of the cost. In talking with Frank Van Alstine about his new cases for his new FET Valve gear. He raised the cost $500 for the new silver cases from the old black cases. And the new ones are not that fancy!