And the truth did everything with a big discount.

Saatchi would not pull him.

Well and good will - according to the payment.
Gala Here is the place for the answer to your question about a brand without the artist. Smotrte because he himself did not stain, and commissioned a portrait of Sarkozy in Poland.
New collectors are buying is not working and not even artists, but primarily it is a brand. And the creators of brands need full control over them. The exclusive contract is promoted as an artist can break without much harm to themselves, but can not provide the required amount of work or even drink and throw everything in the most unsuitable moment. Whatever investment raskrutchikov justified choose or have already died of single artists (they can add as many such works, and how to market) or not very talented, but with a bright charisma and passion for fame (and he does not need to create anything - just an individual brand) .