"Because I say so..."

It puzzles me when a new radio station uses a slogan without justification, such as, "This is your source for (classic rock, R&B, today's hits, etc.)"  When I hear that, I think, "Do you play a wider variety of music than the other station(s) in the market with this format?  If not, how are you the source, when one or more stations have been on the air longer and are doing a more expansive job with your format?"  If you're going to just proclaim that you're the source of a musical genre, your slogan might as well be, "Listen.  Just because."