Retailers are pulling back from self-checkout after years of theft, errors, and questionable time savings
(www.techspot.com)
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I don't see any evidence they're "pulling back", at least not in Europe. More and more are self service checkouts than ever before. That said I think stores prefer the kiosks where people scan their items than the kind where people have barcode readers and wander the store scanning (or not scanning) goods.