Actually, I've visited DTW and MEM. I've been to MEM eight times now and have been to DTW four times.

No kidding, each time, each gate, we had to wait for the ground crew. Once, while the aircraft was 90 degrees to the gate in DTW, the ground crew were dancing, moonwalk and all. NO, I'm not joking. The passengers could see it. Ridiculous. Our radio calls to DAL and NWA ops were ignored. The ramp controller told us that they don't have anything to do with ground crews. Shrug. Then about 5 minutes after they were done dancing, then walked without a purpose to their stations, the wands went up, and we taxiied to the gate.