Don't feel bad for the shuttle drivers at the airport. I met a shuttle driver at LAS who was a former NW airlines maintenance tech. He said he brings in close to $70,000 a year driving a shuttle and has no plans to return to aviation maintenance because the pay is so good.
I also met a valet and a bell boy at MGM Grand who both claimed to make over $80,000 a year. The bell boy owned two homes in Las Vegas and had plans for another. They are some of the better paid employees in the city. Not too bad for a job that requires no education and no special skills. Unforunately those jobs are all about who you know, otherwise I might be a bell boy (lol).