Mike C., I was always under the impression that markup on designer goods was closer to 80-110%. Otherwise, how is any money made during seasonal sales, when discounts are regularly 30-40% off to begin with?
(I know, if you can't afford the tag price at Brioni, then you shouldn't be buying...)
I doubt any retailer thinks this anymore. Half price, or even 1/3 price Brioni, is pretty steep, even for the relatively affluent.