I didn't buy anything. Well, I bought Halo: Spartan Strike and Rayman: Fiesta Run for $0.10 each on Windows 10, but that was more because I had about $7.50 in my account that wasn't being used. Halo and Fallout just take up too much time. I was going to get Rare Replay if the Xbox Store matched the MS Store's $15 physical price point, but at $20 digitally, I care a bit less.
Instead, I spent money on some auctions online. Got Mario Kart 64 and Pokemon Snap for $38 shipped and bought about 15-20 Blu-Rays for under $40. I picked up a 128-GB microSDXC card for my upcoming Lumia purchase, but nothing's grabbing me for games. I think a GotY release of Mordor or Dying Light might have roped me in.