naah man! it don't work like that, you don't actually buy the dress, they lend them out to stars and the like to be seen at premieres n stuff then everyone wants them. Scott Henshall gets his name known for Tina's dress and then puts out a few shirts and everyone wants them... see also Alexander McQueen, Stella Macartney for Chloe, Liz HUrley in 'that' Versace frock etc, etc...