La Panza Porteña points out some great Buenos Aires dining offers that include discounts of up to 50% off at select restaurants during Tour Gourmet Buenos Aires 2012 which runs through February 29, 2012.

We had a chance to check out Sushi Club Palermo Hollywood on Monday night, and the 50% off discount made an expensive meal relatively affordable ($338 pesos for 45 pieces of sushi reduced to $169 pesos). Plus, they had red tuna which is a rare treat. Just remember, most coupons do not include drinks, service charge or tip.
There is also a wine tasting course at the Sheraton available with a 2×1 discount. Enjoy.