They are different and both bring something to the table.
I don't doubt that people would pay to listen to Beck. His audience is loyal, as is Rush's.
Beck is OK, but there are a dozen more entertaining shows than his and it seems a bit presumptuous for him to offer a premium service. Half the WABC shows are better (and stream for free) and Medved is more interesting as well (they do a semi-on-demand version of broadcasting his show on KRLA).
1) Remember that American woman in Israel who was run over by an Israeli tank???
2) Remember that guy who went to the Phillipines to hang out wiht a girl he met on the internet and her Muslim buddies, only to be captured by them???
3) This reminds me of Berg from all the weird info. that is coming out....