Exploration of art as a commodity

I can't claim to be some sort of expert on art but i found this a well worth watching , a 15 minute Google video presenting a conference paper by John Mitchell.

"Modern art is based on profit potential rather than expression of free ideas and communication. Therefore the commodification of art has rendered the message contained within to be obsolete...Whilst there are artists who create art outside the gallery system; notable influential artists subscribe to this system of determined market values.."

With comments from Alan Woods, the Trotskyite , who can also be viewed on his own video discussing art which i also rather liked .