A site called HalfPriceShows sells tickets to Vegas shows at half off. When I checked the site had tickets to 11 shows and 5 tours, including Mesmerized, ICE – the show from Russia, Stripper 101, Popovich Comedy Pet Theater, and Soprano’s Last Supper. Tours included a Walking Vegas Strip Tour, the Haunted Vegas Tour, and a Grand Canyon South Rim Bus Tour.
The site charges a $3 fee per ticket. Tickets can be purchased up to 10 days in advance and are non-refundable. You buy the tickets online and get a confirmation code to take to the box office. Some tickets include dinner. Read the FAQs here.
The site has plans to expand to other cities.
