Sad to hear of your problems, Ubuntu still not getting these things right is what will keep Linux from being bigger with the mainstream.
But as for gaming, there's no comparison between Windows, which has everything, and Linux, which even if Valve sticks to and eventually breaks through it will take a generation or more to catch up. Currently graphics drivers are worse than their Windows counterparts as well.
I appreciate games we get and do play what I can, but you will most likely want to run Windows if you want to game for real.