I think Grenache is where Riesling was a few years ago, a bloody delicious variety that is unpopular with the mass market for no apparent reason.  Accordingly, prices are obscenely low.  This Hentley Farm proves my point.    And Hentley Farm, that name may be familiar as it was Halliday's Winery of the Year a few years back. So you know there's no cutting of corners when it comes to wine. 

Folks, there won't be too many times in your life that you can buy an under priced yet well made and delicious wine.  Today is one of those times.  Do yourself a favour, for $23, you can't go wrong.