We are looking to put up more storage next summer. We are unsure which way to go large 10,400 bu hopper bottoms with tube or rocket air or large 30 k flat bottom bins with full floor air. We can put up 7 10,400 bu bins for the same price as the 3 30979 bu bins. The biggest issue is we only farm 1500 ac at this farm on a three crop rotation. The rest of our land is forty miles away so it's a tough call.