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Hmmmm...I live in Houston and I've never seen any high-tech carts. (Could someone be pulling our leg?)
We have a new grocery store in our area (Kroger) that just got all new carts. The most high-tech thing about them is the eurothane wheels (did I spell that correctly?) ...they're very quiet and roll nicely....but no electronics involved.
(PS - we also get the 'paper or plastic' question)
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