answer:No, they are not all 3D compatible (VERY few things are), and you better believe that there is a big price difference. There is a lot more involved in displaying 3D models than there is in rendering a 2D image. Not knowing how tech-savvy you are though, I won’t get into it beyond that. It really doesn’t matter unless you have a 3D-capable television though; playing the 3D version on a normal TV won’t do anything. Or if it does,you won’t like it