A week ago, Mikhail Prokhorov went to Nello, the upscale Madison Avenue eatery, to celebrate his good fortune (!?) on buying the Nets, famously dropping $18,757. Friday, his chief rival, Chelsea Football owner Roman Abramovich, outdid him. Russia's second richest man paid $52,221 for lunch at the same eatery. Between those two binges, Jay-Z also ate at Nello. He paid only $1,700 and got to dine with Beyonce'.