A few odds and ends:
1) if you want to see a plethora of dune buggies, Moab is the place-- they are apparently street legal in Utah-- and they are everywhere . . . riding on the BLM trails, parked in downtown Moab, in garages in our condo neighborhood, and being pulled on trailers; I don't know how people endure the dust and sand, but they certainly look like a lot of fun;
2) everytime I see a Pet Waste Station with plastic bags and signage urging dog owners to clean up after their pets, I really miss Sirius . . . and watching the Family Guy episode when Brian gets hit by a car didn't help;
3) the Moon travel guide on Arizona describes the North Kaibab Trail-- which we'll probably be hiking as you read this-- as "twisting down improbable routes hard against the cliffs, with nothing but your sanity keeping you away from the gorge."