You've basically got it right when it comes to marking. All the brands I've mentionned, and really all the reputable clothing / shoeing companies, have a production cost that's around 50% of the retail price. Add in all the miscelanous costs and the final margin isn't that high. For the largest of them "marketing" is having a few stores in key areas (London, Paris, NY) and a stall at some events.

If you take that formula and input marketing, you've got luxury companies : great craftsmanship at inflated prices.