If you want to do a Canyon tour at a decent price go with these people. They have a bunch of different options and they are all at reasonable prices.
We did the night Vegas strip as it was only $119! The views were stunning. Its one thing to walk down the strip at night and another to see it in the air. Also checking out the Freemont Street was pretty amazing as well.
All in all great tour! Def worth doing if in town!