When I go to LAS, I don't worry about such frivolous things like that. I spend time at the airport watching all the action. I can do a Vegas turnaround trip in one day, as it's only a 3 1/2 drive from where I live.
On the rare occasions I do overnight there, you may laugh at me, but I stay at the Motel 6 on Tropicana, caddycorner to the MGM. Of course, I admit it-just as some of you are thinking.....a cheap bastard.......
I once walked to the terminals at LAS from said Motel 6 because 1. I didn't feel like spending the whopping $6 on a taxi, and 2. I didn't feel like waiting for one.
It's a long hike though, and not recommended unless it's at night, or early morning, or if Vegas happens to be experiencing an Arctic chill-which means the temperature has dropped to below 85.
Hey, it's clean. comfortable, and I wont get robbed. If I drove up there, I'll have my car available to go wherever I want. If I flew, the Strip is only a 5 minute walk, and from there, I've walked as far as Treasure Island and back.