ph0rque, in addition to all the good ideas here, think about a solution to the problem that all gardens and farms have - that what you want is not always at the right harvesting time. Ie: if I want to eat a carrot, I want it now, not in 2 months. How can you solve that problem with your system? Bigger volume? Exchange with neighbours with their own AMF? etc...
Also I'm definatly with @sama on the Nespresso model. Don't even bother selling seeds because some will not even germinate. Sell the pods (biodegradable of course) that "plug" into a prepared receptacle.
Thanks for the insight, jonnycowboy. I'll think about the problem you pose. It can be somewhat mitigated by staggered planting (in the case of carrots) and continuously-fruit-bearing plants (e.g. some tomatoes), but there must be a better, more elegant solution.
