Better that and kill some terrorists than send an entire army for the same terrorists. Much more efficient and safe for everybody, including the country where the drone is used. Better a drone than an army.
I am not against the strategic use of drones vs. putting boots on the ground. I am questioning the number of countries we have used drones in. A lot of questions are also being raised about the targets being "terrorists", and I am not talking about an accidental drone strike at a wedding of civilians, but the public's blind acceptance that we are indeed getting the 'bad guys'. I am not so sure the ratio of bad guys to civilians is as high as reported. Are you, and what's your evidence?