Normal bcbs is pretty available (i remember stacks of cases at galeville byrne dairy one year) but disappears quickly ~26-27$ 4 pks. Variants (i seem to see barley wine pretty consistently but never coffee) are usually available for 4-6 wks after the initial release and can be found at a variety of retailers (dewitt wegmen's, party source, real food co-op, aformentioned byrne dairy) - 7.99-9.99 per bottle.
Any one have any luck? Went in today to ask what the release time was for bcbs at Byrne dairy and the lady behind the counter said they didn't get any... I think she was bsing me but we will see tomorrow.