I couldn't care less if Kate has 500 dresses. But the same 500 dresses does irritate me. If you like a dress, colour and style, rewear the one you already have ffs. Don't buy an identical one from another designer. it's just irritating. eg I can live with the same dress in multiple colours because they're different from each other. But not the same dress from different designers that aren't different at all. sigh.
I mean, it's not like the classic white shirt which we're all told to have 5 in our wardrobe.... a) we're washing the others while wearing one and b) actually, the slightly different length, fit, details Do make a difference in a way that a new dart on the same emerald green dress just doesn't.