The ultimate stupidity in all this is that 3D isn't the hook, it's a glasses-free 3D that's the hook. That's the whole reason Nintendo went this in the first place. The lack of glasses is the ace in the hole. It is the licence to print money.
So Sony and Nintendo promoting 3D together is like an automobile company and a horse breeder promoting transportation together. These aren't co-existing products, this is the new technology kicking the old to the curb. Making Sony's 3D look ridiculous and out-of-date is Nintendo's whole plan. It makes the 3DS look all the better. Sony doesn't just look pathetic by reaching out like this, they look like utter idiots.
And ignoring the cost and ignoring how uncomfortable it is to wear glasses over glasses (which I would have to do) requiring glasses for 3DTV sucks because it's a restriction that current TVs don't have. I can invite however many people I can fit into my living room to my house to watch TV. With Sony's 3DTV I need to have a pair of glasses for each person which isn't feasible. There was never a restriction to TV watching like that before. It would be like handing out headphones for each person to listen. Even if the headphones were free no one would want to do that because it's restrictive. That's why we have speakers.