I'd guess somewhere in the neighborhood of 200 lbs. I figured 7-13 pounds base malt per batch depending on the beer, by somewhere in the neighborhood of 20 batches a year, and yeah. Figure that makes about 200 lbs. Right now I have 20 lbs of Munich, 15 lbs of Bohemian Pils, and 10 lbs of Maris Otter.
I like the Pale Ale malt, particularly the Briess version, but I don't brew enough American beers to warrant buying a full sack, and it doesn't cut it for me for English beers.