There is no cheaper two-armed robot and there is nothing with the capabilities and flexibility that Baxter offers (particularly down the road as they improve it).
Taking the robot into battle requires two pilots armed with Xbox 360 controllers: one directing where it travels, and another aiming the turret and firing.
Detroit is a city of contrasts, but no one has captured the good and bad as vividly as an unidentified hobbyist armed with a cheap helicopter-like flying robot and a YouTube account.