They might be willing to invest the time and money to become proficient at this attack, if they believe they'll be able to use it on several high-value heists -

They might be willing to invest the time and money to become proficient at this attack, if they believe they'll be able to use it on several high-value heists -- think jewelry shops or museums, if you knock over a handful of those without causing a fuss you could make many times your investment.