> Change the comparison to give me your phone for a day and I'll give you £1000 and suddenly you'll get far more different answers. That may be a better compar

> Change the comparison to give me your phone for a day and I'll give you £1000 and suddenly you'll get far more different answers. That may be a better comparison, but with one caveat. If you offer the money in exchange for the phone's data now, the user will balance out the privacy value of what they intuitively believe is on their phone at this very moment. Instead, the offer should be "I'll give you £1000 now in exchange for the right to access all of your phone's data for a day at the time of my choosing, and without you knowing it beforehand or after the fact".