A limited number of
PICCINI SASSO IGT are available in 3L format. Should be fun to open at a party over the next few years and a great price for 4-bottles of wine!
The
POGGIO IL CASTELLARE BRUNELLO DI MONTALCINO 04 are also available in 3L and 1.5L format with only a small markup for the larger bottle over the 750mL.
My son was born in 04, so I am contemplating these for 21st B-day, or a wedding rehearsal dinner wine. Other sites suggest these may not make it past his high school graduation, although the large format should help the aging window. Well, at least the parents will drink well :0)