Another great podcast Paul and Jocelyn!
I've had one meal like that in my lifetime and have never forgotten it. It is worth what people will pay for it. Wouldn't you want to run a restaurant that served all permaculture polyculture 15+ food for $750/meal? Even better yet, your idea to charge $200 for an exquisite permaculture meal. This is something that requires momentum. As more people understand permaculture, more will be willing to pay for it.
Farmers making $500K per year on modest acreage practicing permaculture will create a flood of people who build soil, grow healthy food, and attact other people to the movement. It takes a lot of up front energy to learn and practice permaculture with the payback from hardscaping and perennial systems in the years to come.
Put yourself in the shoes of someone with lots of time and no money, an 18 year old high school graduate. You have to decide how to put your time to the best use. If you find out permaculture farmers can do the right thing and make $500K, wouldn't that be a very attractive proposition? What if, instead, you find out you can be a permaculture farmer and make $10K per year and have no resources to grow your skills, teach others, or add more land under your stewardship? What is more likely to attract young, energetic talent? If you count only on the altruistic, permaculture will be a small footnote in the history of the productive use of land. Momentum will be built by attracting people through surplus (yes, profit).