Are the $100 hamburgers getting old? Have you visited every airport restaurant within 100 miles so many times that the staff greets you by name and has your favorite meal ready? Did you already give all your friends rides, so that you are now reduced to approaching people on the street, like the press gangs of early naval warfare, hoping to find someone to go flying with you? Since most people don't have the unlimited resources necessary to go hop in an airplane whenever they want to, maintaining currency and proficiency can be a problem. Even if you do have unlimited cash, boring holes in the sky can get old pretty fast. Because of this, many pilots end up flying just a few times a year. In the meantime, the flying skills they worked so hard to develop get pretty rusty. This in turn leads to days when less active pilots don't feel safe to fly because of conditions like a gusty crosswind, which means flying skills deteriorate even further. It sure would be nice to have a way to stay current while doing some interesting flying.