Wow...I looked at Rittenhouse. How the hell are these brewers so expensive? A 25 gallon brewer was like $2,300 or something. I just don't understand. Can't you just buy a 200 gallon tank from a company for say $250, buy a pump, tubes, mesh filter for compost, and keep your costs down around $700 or so? A 500 gallon brewer from Rittenhouse was over $11,000??? Can someone please explain this?