I've been playing video games pretty much since I was born (1981 for what it's worth).  From Atari on through the current consoles. I've either had or had access to basically all the gaming platforms over the years and I don't see my interest in games waining, just shifting maybe.  I used to play games for the challenge of them, the "F you Castlequest! I lost your map but I still just beat you!" thing but now I'm more interested in the story.  A bunch of games I've played boil down to little more than movies that I have mild interaction with.  In some cases I indeed probably would just purchase the video of a game, say if they put out Alan Wake as a CG film or something. 
 
I found myself missing the joy I used to get from simple games that somehow gripped me deeply.  Pac-man or Tetris come to mind.  Anymore I don't know that I have that joy left in me.  Those things I once cherished are relegated to something I do when I've run out of all other entertainment and that is a shame.  I tried to go back and relive my childhood and it sort of turned out like Game Room, a total disaster and a sad mess.