Bidding started yesterday on lunch with legendary investor Warren Buffett.
Last year's lunch topped 2.1 mil.
But because of the economic slump, even Buffett might not attract such a lofty sum.
The charity auction benefits the Glide Foundation, which provides social services to the poor and homeless in San Francisco.
The auction's winner will be able to take along up to seven friends for the lunch.
Bidding closes Friday evening on eBay.
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