I've been reading about the impeding doom on the prices of malt extracts come next year. So, in my infinite wisdom and trying to save a buck or two, been toying with the idea of buying in bulk. DME is definently easier to measure out but I worry about it's propensity for water, or humidity. I usually brew about once every 3 to 4 weeks, full boil, 5 gallons, extracts.