I can buy a GPS in Radio Shack. You can put a GPS on a drone, but a drone is still a drone. The suprise weapon that I-Bin-a-Nut-Job supplied to the Hezbollah that was going to wipe out Tel Aviv was slow, fat and looked like a barn on radar. In short, unusable as a serious target drone becasuse it was too easy to shoot down.
But it had a GPS! Wheeeee. So does me kid sister...