S-3D for gaming will take off when some criteria are satisfied :
Good ease of use
Big screen size
High picture quality
Low annoyance factor
The annoyance factor as I call it can be :
Flicker of shutter glasses
Frame of glasses too small for the size of the screen
Glasses that darken the screen too much
Games/apps that don't work in S-3D or that require going through hoops before getting it to work partially.
Anything that's frustrating for the user
Overall, you have to satisfy the customer. I can't say I've always been satisfied with S-3D products I've used in the past.
From what I've seen this year, S-3D hardware and software is improving. If you look at iZ3D and TDVision right now, you'll see that they both have good hardware and software. They are both working on improving compatibility with games/apps. iZ3D with their drivers and TDVision with their TDVirtualCam (which I hope will get included in games to come) and plugins.
I also think that a good S-3D solution that would work in S-3D with consoles for one or many users at a time would be a hit. That requires the console and the game developpers to support it.
I started gaming on a commodore 64. I had many games. After that, I had the following (in that order) : pc with games on 5 1/4" disks, Nintendo, Super Nintendo, Playstation, Dreamcast, Xbox, Playstation 2. I upgraded the pc many times through the years.