I agree it would be better suited to the afternoon. It will also appeal more to international markets, it didnt finish untill gone 3am here. Plus as they say thousands will call in sick costing millions in the economy.
We used to go to the Las Vegas race which was awsome because it was literally across the street from Nellis AFB and a couple of times the race was during Red Flag, so it was quite busy over there, lotsa stuff taking off and landing, have seen almost everything there, F-15's, F-16's, F/A-18's, A-6's, C-5's, KC-135's, helocopters, everything