The Mojang acquisition was likely a very smart move. I remember the day it happened was the same day that Apple announced the Apple Watch. While I was aware of the Watch, my kids were completely unaware of it, but both they and their friends were very aware that Microsoft had purchased Mojang. They were very concerned about it and it was the topic of much conversation that night.
If MS is able to utilize the popularity of Minecraft in the <18 set to their advantage...
If MS is able to utilize the popularity of Minecraft in the <18 set to their advantage...