7ozs, 250s, 12ozs, 22s, 500s, 40s, 750s, 1/2 gallon growlers, 1/6 barrels, 1/4 barrels, 1/2 barrels. All great vessels for pouring beer. Heineken and other breweries have tried refrigerator-sized kegs, but the problem is that they lose their carbonation if not consumed immediately - basically they are just large growlers.
But now MillerCoors is testing a new, recyclable, 1.5 gallon refrigerator keg that holds its carbonation. "The boxed product, which is designed to fit into refrigerators for drinkers to consume periodically, rather than for one-time party use." Strangely, the price per ounce will be higher than a case of cans, but MillerCoors is betting that you'll pay a premium for "draught quality" Miller Lite. "The tap comes with a 8 or 16 gram C02 container to release the CO2 into the keg and a tap handle on it."
This type of package size could be pretty interesting in a craft universe. Perfect for those beers that you just like to drink every day. I could see breweries playing with bottle/keg conditioning with this package size to create truly creamy draft-style milk stouts and pale ales and Irish reds that just don't seem to carbonate right in a bottle. It would also be great for seasonal offerings, like Furthermore's Fallen Apple, where a 6-pack isn't quite enough, but consumers aren't going to go back to the store for a second 6-pack before the "season" is over. Moreover, this could really open up some interesting new markets. Small retail facilities like coffee shops or small bars wouldn't need to install a tap system, they could just buy a few of these to sell to the occasional customer. The biggest question is whether this will, in fact, filter down to the craft world. Although, as noted in the above articles, it's really nothing more than a small CO2 canister attached to a mini-keg.
I would buy a draft keg of New Glarus IPA, at $30 every two weeks for the rest of my life.