How much does it cost him - a collector does not say, but it is clear that the material cost of collection is huge. It - "Beetle" Ilya Kabakov, for which at Phillips de Pury auction has been paid a record $ 6 million, "Confectioner of Kang, Chaim Soutine (£ 5 million at Christie` s), "Portrait of a girl in a black dress, Amedeo Modigliani ($ 14 million at Sotheby `s), masterpieces of Leon Bakst and the best pictures of Eric Bulatov. Results in the collection of about 400 works, and this does not include photos.
http://kommersant.ru/doc.aspx?DocsID=1181685
And Cantor's interview here:
http://kommersant.ru/doc.aspx?DocsID=1181696