If it's bayesian-unlikely they want your phone then why should it be any less bayesian-unlikely they want your cash. That's one weird argument. And BTW your phone is usually quite visible, like sticking out if not actually being used.
> and max-spend limits
Ok, now they've got your expensive phone and can spend up to your limit.
> and max-spend limits
Ok, now they've got your expensive phone and can spend up to your limit.