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Dynamic pricing could be coming to your local supermarket
(www.abc.net.au)
This is a most excellent place for technology news and articles.
“It was $2.99 when I picked it up.”
Watch a product for a minutes, clock the lowest it displays in that time, run in and grab it, “It was $2.99.”
Repeat for all 30 items in your cart just to annoy the store.