On Saturday morning, I went for a swim at the Y. Disappointed with my back hair's drag during my doggy paddle laps, it was time for a clean slate, err back. That, and my back hair resembled the DC metro area, replete with a beltway and suburbs. I had my back waxed in July of 2007 while visiting my sister in a vain attempt to fit in with the LA lifestyle, but I was a poser and haven't repeated the painful experience.
If you don't count the years of practice, 12,000 calories/day diet, and Olympic medals, I'm right there with Phelps and his hairless back.
Mark Twain had upper-body hair and look where his writing career went!