This probably is not an earth shaker. Minimum advertised prices have been legal since the mid 1990's. The manufacturers don't care what price is offered to consumers as long as it isn't advertised publicly. The purpose of MAP is to protect the dealers from each other. It is a good thing for dealers and a bad thing for consumers.
I'm an e-merchant in another industry. I was involved lightly in the audio business about 5 years ago. At that time, the manufacturers refused to sell to e-merchants regardless of the prices. I offered to sell at list price and was denied time and again. So the issue wasn't price, it was dealer and dealer terrory protection. This law won't change that at all.
I think you can yawn about this particular ruling.
