My question is...why would you want to?

Throughout the comments, it sounds like people are expecting these drones to only be ~50 feet above the ground, buzzing right over houses, or being a noisy nuisance hovering in place endlessly.

Maybe it's because I live in an area with lots of tall trees, but I'd expect these drones to be flying at least 200 feet up. At that height, it becomes difficult to hear the drone unless you're in an incredibly quiet rural area.

And it's not like a drone is going to hang around. It'll deliver its package and then head back to base to charge and/or pick up another package.