Chicago Sun-Times technology columnist Andy Ihnatko mentioned replacement sales as well in his column Saturday. But he added a wrinkle that I hadn't considered related to fitness buffs. He writes:
I'm certain that Apple will sell a lot of iPod Shuffles. Most of them to the same people. As a teensy invisible little music player that clips onto clothes that people get all sweaty in, the new Shuffle will probably become the most frequently-laundered product in the history of consumer electronics.