Vintage Cellars - Free Beer - 24*330ml König Pilsener
For example, buy three bottles of Grant Burge Blanc de Blanc Brut NV for $18.99 each (normally $27.13 but cheaper if bought as part of a dozen), or if you get a dozen bottles of Chandon Brut NV for $19.99 each, you will get a cellar share. Or buy a dozen bottles of Leo Buring Eden Valley Riesling at $14.99 per bottle and get a share.
You can use the share for $25 off future purchases, or redeem it from a selected group of products. Currently an option is to redeem one share for a case of König Pilsener (24 * 330ml bottles) worth $39.99 - a decent enough German beer.
Drawback? Well, you might not get the share in time to get the beer deal but you can still use the share to get something like a Petaluma riesling... or just hold onto it until a better deal crops up....