Re: So...
Given a TV or DLP that can hit 100 or 120Hz, active 3D is virtually free with the addition of an infrared led (and the opportunity to sell 100 quid accessories ad infinitum, only compatible with your product), nearly all TVs are HDMI 1.4 (has option for 3D support, which is just a handful of simple video encodings the TV must understand) compatible now anyway.
Of course when choosing between two TVs which are exactly the same in specs, punters typically by the one with the big "3D ready" logo.
I don't think the industry is pumping prices, just using it as an opportunity to sell brand locked accessories (which isn't much better, but anyway).