I've bought a couple bottles South African wine recently for a steal and was very impressed. Costco had 2012 Excelsior cab for $6.99 around Christmas and I saw it at Wegman's for the same price.
It is the best <$10 wine I've had in recent memory.
We had dinner with some friends who went on vacation to SA recently and they said the local wines were amazing and cheap - I'll have to see if out costco has any left... Thanks!