Is the only purpose for a bottling bucket to move the beer away from the yeast at the bottom of the fermenter so that you can batch prime with sugar before bottling? Am I oversimplifying, or could you ferment for three weeks in the bucket that has the spigot, prime each bottle (vs. batch prime), and fill the bottles directly from the fermenting bucket? With all I'm reading about the dangers of introducing oxygen into the beer when bottling, I'm having trouble seeing the advantage of batch priming vs. bottle priming, as is done with Mr. Beer kit. I'm a newbie at brewing, so if I'm missing something, please let me know.