Well, i can see it working, like blu ray, if sony uses its links to get loads of stuff released in 3d, then people will buy it, and the the price will go down and it will become common and they will get their money back. this has happened with dvds, surround sound, HD, and virtually all games consoles had a rediculous price tag when you look at it from todays standpoint.
They cant use the 3ds' version of 3d as it uses a wierd LCD viewing angle trick to make it work, which on large scale only give some sweet spots from certain angles where it will apear 3d, so they are using a superfast filtering system on the glasses which makes it able to be much better than the standerd red blue filter, as it can still preserve all colour and quality and can give much truer 3d that those $3 ones do, think difference between sub sd and true hd here.
But that is why there is such a huge initial price, it is a completely new system, so all parts have to be made with new machines ect,
Anyway, if i could afford it, i would loooove to play killzone 3 in 3d, just looks so sick,
i hope 3d works out anyway, seems like im the only one. But to me this seems like a step in the right direction for holograms, and those would be awesome