Feh!
I'd rather go to the mountains to meditate with the trees and listen to the clouds drifting by.
Whatever you dang fool European Tourons do, DON'T bite on one of the many Grand Canyon 'tours' out of Vegas. At best you will spend 14 hours on a bus with maybe 1 hour split between several overlooks along the edge. Without time to properly immerse yourself in the exquisite environment, your trip will be a large waste of time and $, IMO. And if you hear the terms "Grand Canyon West," "Helicopter", or "Skywalk," FLEE IMMEDIATELY (and take your wallet with you!). The western edges of the gorge are on Native lands. Yes, it's pretty, but the area is MUCH less spectacular than the real GC Nat Park. (They put the park there for a reason!)