We're in a "golden age of brewing and drinking here in the U.S.," a rambunctious Jim Koch told a room full of restaurant owner/operators at yesterday's IWSB show, right after pouring himself a cold one (declaring, "I told the NRA I'd do this speech; I didn't tell them I'd do it sober"). Our stellar-ness lies at the apex of quality beers "in more styles" and "with more innovation" than has "ever been available anywhere in the world." But the message was mixed: though Jim stressed the "long tail" of craft beer, wherein 100-plus brands make up less than 10% of total volume in a given market, he seemed to advocate to operators that the best way to manage the proliferation of brands was largely to ignore them until they earned their salt...