Most visitors here don't know how beautiful the mornings can be, as the sun rises over the desert. On the other hand, they can probably tell you all about Vegas nightlife, which I can't.
I was out doing a two-mile walk down the Strip this morning, between 6 and 7, and you'd be surprised how many joggers are running the Strip at that hour. Of course, within a couple hours of that, it's too hot to be running or doing much of anything outdoors except maybe lie by the pool. Heat stroke isn't pretty.