[keenerd]

They've probably fixed the possum thing by now :-)

Your comment makes me wonder what a good pricepoint would be for such a system. How much money and how much space would you be willing to give up, for example.

Less hypothetically, why the fixation on machines? We've got all sorts of crazy services these days. How much would you be willing to pay for a gardening service that maintains your garden for you and occasionally leaves a crate of produce at your backdoor? It would be like a lawn service, but without all the terrible effects on the local ecology.