In the end, it doesn't matter what will happen to the future values of either MM or MMR. A company made a product, priced it high(according to some), and people still came to buy it in droves.
It's like trying to argue that there is absolutely zero reason to buy a Porsche 918 when you can have a Toyota Prius. Both are hybrids, both run on gas and electric, both will get you from point A to point B. People will buy what they want regardless of the price, sometimes. I know, it's crazy, but they do. People have money and they use it to buy whatever they want. Banish the thought!