In the third paragraph of the above, I should have elaborated that when I said I couldn't see how anyone could buy agressively ordinary music, I meant that by its very background/semi-ambient nature, it seemed to me that it was something that would be liked by people who didn't bother to buy it, partly due to its heavy radio and tv rotation and partly because it just didn't seem, by its very nature, something anyone would go 'OMG I MUST GO TO WOOLWORTHS AND BY THAT' about. Clearly this is another facet of the phenomenon that's interesting/unfathomable, for me at least.