I thought that I'd bump up this thread with a few of the better Argentine wine values that I've had recently here in California - some of these I tried in Mendoza during my visit a few months ago, others I only tried once I started hunting for great values in Argentine wines back home:

Top Tier Stuff:

Mendel Unus 2005 - selling for < $37 at Costco - great, ageworthy stuff

Achaval Ferrer 2005 Quimera. This was the best wine I tasted in Argentina
I preferred it to their single vineyard Malbecs that cost over 2X as much.
I lugged 3 bottles back in my luggage, only to find that it's widely
available here in California, for $30-40 a bottle.


Almost as good, superb values:

Clos de los Siete 2006. Widely available in CA for $15-18 A great wine
at a genuinely great price - This wine is comparable to $60-75 Pomerols

Melipal 2005 Malbec. A really high quality Malbec for around $15


Really Cheap stuff that's surprisingly good:

La Boca 2007 Malbec. $2.99 at Trader Joes - FAR better than any of the
well known 2 Buck Chucks. The cheapest decent wine I've had in years.

Fantelli 2006 Cabernet Sauvignon. a SHOCKINGLY good $5 Cabernet