> Are people then willing to trade personally-identifiable information for a Snickers bar? Not as cheap as a Snickers, but I once had a CS professor do a straw

> Are people then willing to trade personally-identifiable information for a Snickers bar? Not as cheap as a Snickers, but I once had a CS professor do a straw poll of the class for this experiment. Back in the day the most evident tracking was through customer loyalty cards at grocery stores. He asked the class: how much money do you save per visit using your loyalty card? $10? And would you instead pay $10 each time to not be tracked? Perhaps not surprisingly, in 2007 a room full of undergrads would take the discount.