Interesting survey, but our compost system is just a pile...which we rake and weed every now and then. I do love the idea of a "pretty" system but as we live out where no one cares about how it looks...I find the pile much easier to access than a pretty wooden bin, that would rot. The idea of the sifter and wheeled cart is cool. My husband made me a portable box for sifting, that i put over the wheelbarrow, but generally I don't bother to sift.