I think that what is often referred to as a laser thermometer is actually a laser-sighted infrared thermometer, or an IR thermometer with a laser guide beam or pointer.
I ordered a Kamado #7 barbecue smoker/grill back in June. It is built to order, and it hasn't shipped to me yet. I'm expecting it to ship in about three weeks. It can reach temperatures of up to 1000 degrees F for searing meat rapidly. I mainly plan to use it for low and slow smoking at 200 to 225 degrees. But since there is no other practical way to take grill surface temp readings at 1000 F without roasting yourself in the process, I plan to get a Raytek or similar infrared thermometer that has a range up to 1000 to 1200 degrees. IR temp guns in that range typically cost 90 to 150 dollars, so they aren't cheap, but they are still reasonable if you have a need for one.
I don't think there is really a great need for such a device when you are dealing with temps from 60 to 212 degrees. The range of most of these devices covers that, but it's overkill. Plus, a $35 temp guage installed in each of your kettles is both accurate enough, and more convenient than having to point an IR temperature gun at your wort everytime you want to know how hot it is.
Even so, I'll try it out when I get one, although I don't expect that to be real soon.