As much as it is a scary thought that one corporation can and does control so much of an industry, I feel that the LOCAL nature of craft brewing precludes it ever being fully controlled like the Bud Distributor suggested, because of the ability of small breweries to enter the market place. We get to choose where we spend our dollars or pounds, and as long as customers are willing to pay for craft beer made locally, there will be a place for it in the market. It's when we are willing to accept a less expensive beer from a megabrewery, "craft" or otherwise, that we vote for the big guys. Going public to raise capital for expansion exposes a brewery to the risk of eventual take-over. There are a few craft beers that I no longer buy because of their being in bed with Big Beer, like those of the Craft Brewer's Alliance. Now, if I didn't have excellent access to hundreds of locally made great craft beers within miles of my house, I might be less able to be so picky and "high minded".
This is a dated beer map, but interesting nonetheless.