A total non sequitur, but Monoprice's pricing structure is rather strange.
Essentially, it is $1000 for 2 channels and $100 added for each additional channel ($1100 for 3, $1300 for 5, and $1500 for 7).
On the surface, you figure it costs $100 for each channel module they add, but the glitch in that logic is they add the second transformer at 5 channels. If the price structure was based on cost of manufacture it might be something like $75 per module plus $125 for the second transformer resulting in pricing of $1075 for 3, $1350 for 5, and $1500 for 7.
It is their business and this is not an expose' of insidious practices; simply an observation of the discontinuity between the cost and the pricing. I guess at some level they liked the simpler price scheme they used and sticking with $XX99 pricing.