I think our current system of searching and browsing stuff hundreds (of thumbnails) at a time is great. Wasn't that the whole point to do away with aimlessly mulling around a supermarket? So wouldn't having a 3D supermarket be the same as mulling around in a real one?
Unless, you make it a Quake 4 deathmatch, and you have to hack your way through other crazy shoppers to get to the product you want. Now that's a shopping revolution.
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