Well if they would change the freakin case already we would not be having confusion. I don't case if the "grater" goes away but at least paint it or something. Soon to be 10 years on the outside design.
So? The Porsche 911's design concept is 48 years old. The Jaguar XJ design lasted 41 years. (The current XJ takes cues from the original concept but much more radical than the evolutionary tweaks previous models received.)
Some designs are classic and timeless. In the instance of the MP, it's a functional industrial design well purposed for commercial use. I can't think of any other currently marketed tower that beats this "10 years" old design. It's not meant to be eye candy for mall gawking consumers. The changes pro users care about most are the guts and capabilities.