While the waves of 3D releases very 10 or so years are always about generating more revenue (it is a business, after all), this latest one is just so blatantly about greed. I don't remember there being a surcharge during waves past. Then they started charging about $2 extra for the 3D, then $3, and I hear some places have upped it to $5. Ridiculous!
I'm hoping it doesn't happen, but if DS happens to be made/released in 3D, I will end up seeing it that way. But I only see myself opting for 2D when it comes out on Blu-ray. (I don't see myself ever getting a 3D TV; what's the point?)