It's really Angry Birds vs. the void left by the death of licensed movie and kids games. This is a good thing. The decline of Nintendo hardware sales look pretty bad for retail numbers but we all know how Nintendo was the only company reaping any benefit, 3rd party Wii developers suffered.
There are types of games to suit all gamers. If you aren't interested in FPS games, Nintendo in general will serve you well. Playstation usually has a lot of great, exclusive, non-FPS games. I have always had every generation of Nintendo consoles, both hand held and TV-based.