
"Microsoft has predictably argued the acquisition would give gamers more options"
Of course they would say that. They all say that. Always. Every acquisition is going to be good for the customers and not really so great for everyone else.
In reality, prices go up (mergers are expensive, but think of the long term savings you'll make), costs go down (because there's always efficiencies to be leveraged) and profits go up (see, everything is working as planned).
Mergers and acquisitions are always for the benefit of the larger partner in the merger, at the expense of the smaller one. And the result is customers getting charged more for inferior products because... well, there doesn't appear to be any competition around here any more, does there?
Am I cynical? Yes. Am I bitter and twisted? Probably. Have I actually ever played a Microsoft or Activision game? No to the former, not for over 20 years to the latter. But have I seen mergers happen that have been bad for the customers? Yes - almost every single one I've seen.