Adam Lindemann warns of the pernicious influence of the Art Advisor-Industrial complex in his Observer column:

Just a handful of powerful consultants control many of the wealthiest clients. So people are ending up with more or less the same art collections. It’s uncanny; I can almost walk into someone’s home and name the art consultant by the mix of paintings on the wall. It’s not that I don’t like the Arte Povera classics-meets-Gonzalez-Torres look, or the sophisticated air of the Wool-meets-Ruscha-meets-Guston-and-Kippenberger mix, or even the well-tread Hirst-cum-Prince-cum-Murakami hanging. I actually love all of those artists. ButI don’t like formulas.

Art Intel, 2011 (NY Observer)