MLG operates MLG.tv, the #1 online broadcast network for professional level competitive gaming; the MLG Pro Circuit, the longest-running eSports league in North America; and GameBattles, the largest cross platform online gaming tournament system with 9 million registered users across the globe.
Keeping the Surface Connect port and making the Surface Dock compatible with the Surface Pro 3 in the process instead of replacing it with a symmetrical and reversible USB-C port is a tradeoff I posit Microsoft thinks is worthwhile at this stage.
Here's a quick breakdown of each Surface Pro 3 model: Intel Core i3, 4 GB of RAM and 64 GB of solid state storage. Intel Core i5, 4 GB of RAM and 128 GB of solid state storage. Intel Core i5, 8 GB of RAM and 256 GB of solid state storage.