Since I now in the business of building amps and preamps, budget is one and marketing is the other. Knowing my preamp is way better than anything you can buy that is from the known high end manufacturers, I have a limited buying public because I am an unknown manufacturer. Recently a consumer compared my preamp in his system for a few weeks told me that he had never heard anything like this before. He uses an ARC top of the line preamp. He wants to send the preamp back to ARC because he thinks something is wrong with the ARC to sound so bad in comparison. He understands the design and why it works and he seems willing to purchase my preamp but there is a little hesitation factor in buying form an unknown. The marketing effort that it will require to sell direct is costly and time consuming. If I would to to a select dealer network, the cost would double. I still would only get my half. If ARC built my preamp they would probably charge $50K to made a hand made, point to point wired preamp with custom parts. Sourcing parts long term is also an issue. Drivers are parts change over time and you are always experimenting to improve the sound. Parts are expensive to keep trying and testing and listening.
I hope this helps.
I hope this helps.