For 2009, craft brewery sales represented 4.3 percent of volume and 6.9 percent of retail dollars of the $101 billion U.S. beer industry, the association reports.http://www.mlive.com/kalamabrew/inde...7_percent.html
There just aren't that many people out there educated about good beer. On the off chance they might pick up a craft six pack they probably get turned off by the fact that it doesn't taste like the other three beers they have had (bud,miller,coors) and therefore can't understand why you would pay so much for that crap (their words not mine).