["Followup-To:" header set to rec.gardens.]
On Sat, 25 Aug 2007 08:49:28 -0700, Eigenvector wrote:

Found some prices for you:
http://www.enviroalternatives.com/toiletprices.html

Good Lord, those things ain't cheap, in fact it would take quite a while to
recoup the costs. Environmentally friendly or not, those things won't ever
take off until they can get the costs down into the 3 digit range. Well
that certainly satisfies my curiosity.

I was at Powell's technical today, and did they every have a book for you:
Lloyd Kahn's Septic System Owners' Manual (rev). Included an early 20th
century composter built from a wooden barrel...