If anybody would care to see the biggest shuttle service joke, it's at McCarren int'l in Vegas. It runs between the int'l terminal 2 and the main terminal 1. You can WALK between the two in less than probably 5 mins. I suppose if you have a lot of luggage it's useful. I just had my first experience with it; I got in, the driver was standing outside while the motor was running. The interior was exceedingly hot, like a blast furnace. As I sat down, you couldn't miss a huge sign on the dash area that said something like: "TIPS, 50% of my income is from tips!" Well, already starting to sweat from the intense heat (the motor running contributed to that) and then seeing this sign, I exited and mentioned to the driver, "Whew, it's hot in there!" He then offered to turn on the A/C but I responded, "Nah, that's alright, I'll walk there." If you ask me, how rude, to display a BIG sign like that. And, what does that "50% income from tips" mean anyway? Does that mean that if he makes $3k a month that he gets another $3k a month on top of that in tips? I'll bet that most newcomers to LAS Terminal 2 don't even realize that they can WALK to the adjacent terminal 1 before the shuttle driver even starts out (once more passenger fill in) for the terminal 1. Hey driver: if you're reading this, why don't you try: "Tips appreciated" and not with a giant sign practically blocking one's view through the window?