It is hard to justify a $150 surcharge if you're using a tool that costs less than that (of course, knowing how to use the tool is a skill worth far more, but most people think it is as easy as putting it in the lock and pressing a button). I'm reminded of the apocryphal tale of the mechanic who, after some um-ing and ah-ing, hits the engine just once with a small hammer and fixes it. He presents his bill for $100, and is asked to justify it, so produces:
Hitting engine with hammer - $1
Knowing where to hit - $99
Similar story with Picasso...
Some guy told Picasso he’d pay him to draw a picture on a napkin. Picasso whipped out a pen and banged out a sketch, handed it to the guy, and said, “One million dollars, please.” “A million dollars?” the guy exclaimed. “That only took you thirty seconds!” “Yes,” said Picasso. “But it took me fifty years to learn how to draw that in thirty seconds.
It's a skill I've never managed to crack (perhaps in part down to my very unsteady hands). From what I've read, a lot of people buy pick guns expecting them to be a one-button solution, and are disappointed to find they can't open locks with them without training and practice.
Sure, but should the pick gun fail, your locksmith (hopefully!) can do it the old-fashioned way, too. And pick guns take a lot more skill than people think, they still require a skilled operator to be effective.
I agree with the former, but for the latter, scrubbing a lock isn't all that hard (it takes two or three tries with the pick and it's open), and I can't imagine the gun being harder than that. In fact, it's marketed as the easier way to scrub locks.
I've been thinking of leaving a minimal set of picks in the flowerpot by the door for that very reason. I can justify using them to a policeman or passer-by, but a less authorized entrant to my abode would have more trouble.