I could be nasty about this uninformed and arrogant statement but I won't. I'll stick to the facts.
Not only did Madonna just complete a history making tour, but her single "4 Minutes" was a worldwide smash hit selling over 4 million copies alone. Hard Candy, the album, is STILL in the top 10 best sellers worldwide having sold 3.2 million copies. No, that doesn't seem like a lot but that is the current state of music. Madonna has a very strong worldwide fan base and that's what has made her so successful and the Queen of Pop. If you don't like her, fine, but please don't make yourself look silly by snide and completely inaccurate remarks.
P.S. This is super humorous coming from an MJ fan who should be sensitive to such remarks about sales, relevance, etc... Pot. Kettle. Black.