I've inquired on discounts for the custom model and varients, and there isn't any. The retailer game me the prices which are the same on Aurisonic's site and from the retailer I was dealing with was told to order directly through Aurisonic.
I have have to agree that there is a lot of work involved in a custom piece and I surmise the profit margins are much higher with customs over the universals. Universals can pretty much be sold to any retailer, but customs usually has to go through the same single channel from start to finish of the custom product. It's a good strategy to have lower priced universals to experience the taste of the signature sound, with a chance that the buyer will move up to the custom model. I know if I like universal post audition, that's exactly my steps.