Not sure the best place to put this, maybe in the Las Vegas info stick?? (feel free to move) but UNLV offers crash pad rental from their Outdoor Recreation Dept to students and the general public. The prices are much cheaper than at local shops and gyms. They offer a lot of other gear as well, check it out. (crash pads are at the bottom of the page)
For those who want another option. We are a group of local climbers who recently started crashpad rentals in the summerlin area, close by to red rock canyon. Rates start at 13$/ day. Check out our website for more information: redrockpads.com/