2. Sirius XM
Sirius XM (SIRI) was poised to be one of the most successful consumer electronic devices of all time. The 100 station plus capability coupled with commercial free programming made it sound like the radio choice for the future. Unfortunately, high production costs kept the product on the perpetual brink of bankruptcy, and the commercial free promise was soon broken. By the time 2009 rolled around, shares of its stock that had once been as high as $63, had dropped to $.05, a negative billion percent difference—ok, maybe that math is a little off, but I think you get what we're saying.