Playing Destiny on the Xbox One. Had rented it on the 360, before, without expansions, so I was capped below the max level.
Now I can access end-game content, and it's cool, but I can see an endless MMO grind before me. It is way addictive. I have my first 350-power weapon, which is pretty cool. I think the random drops get better as your light level goes up? It's kind of a cool mechanic, but it also means your progress is slowed down, and the only time you get a real boost is when you have enough legendary marks to buy high-level items, like my new gun.
But more importantly, the gameplay is so tight. I don't know how Bungie made those guns feel so good to shoot with. Missions and PvP are endlessly interesting.