I just came across this short news item on the website of the German newspaper Die Zeit:
Sotheby´s versteigert Gemüseschätze
Thanks to the link in that article, I also found another article In English about the same event from The Wall Street Journal:
Sotheby's Puts Veggies on the Block
Apparently, vegetables belonging to rare heirloom varieties are being auctioned off as a benefit for The New Farmer Development Project (NFDP), an initiative that helps immigrants with a farming background to work as farmers in the New York area. You can also find more information about that program at their website. I for one think it is a very interesting concept, all the more so if it helps preserve yummy old varieties that might otherwise disappear due to market pressures that have to do with everything but flavor.