You might wonder what it would take at this point to be named the Motley Fool’s Worst Stock of 2009, and clearly we need to ask Sirius XM. Among the reasons: “the impossibility of meeting its massive immediate debt obligations” and satellite radio‘s status as an unnecessary luxury in economically difficult times. As someone who is probably calling the company today to cancel his service after the news that the ability to listen online for free will be taken away on March 11, I have some idea of what the Fools mean. [Motley Fool]