For me, I get this feeling a lot with most AAA games (not exactly a the most amazing revelation ever). XCOM and Skyrim are like the only big budget games in the last couple of years I remember really loving. Though I bet I really liked some other AAA that I have since forgotten existed. I think AAA games just sting me more because of the cost.
If I drop 10 bucks on a game that doesn't wow me, I don't get too upset. When COH2 is 60 bucks and I'm not thrilled with it, it stings so much worse. (though COH2 probably extra stings because I wanted it to be amazing. If Rome 2 isn't great, this could be my least favorite gaming year ever).
The games industry is in a much more diverse place than in the past too. You can be more discerning and still have so much to do. When I was a kid if I didn't like certain big games, I was out of games to play instantly. Now, there are so many games and genres that we get to be discerning and still not have enough time.