Alternatively Funded PDC Ideas

I have been thinking about PDC design while reading Earth User's Guide to Teaching Permaculture by Rosemary Morrow. Early in the book, she mentions the difficult balance between running courses for a living and making it accessible to the most people possible. The lowest cost I have found (not including an online PDC where you only pay if you want a certificate) is around 600 dollars and provides no room or board. On the other side, 1600 to 2000 seems to be the average standard. There are higher costing ones, but not many that I have seen.

Thinking about it made me wonder if there isn't perhaps someone trying anything different. The first thing that came to mind would be someone doing a work-for-PDC situation. Something like WOOFing for a month and doing PDC free on the weekends. I could see it being a great situation for someone who isn't planning to make their money off of PDCs, but just wants to get as many people trained as possible. As a bonus, spending a month working on the property gives a much more up-close and personal experience and lets the lessons extend into practical experiences.

Is there anyone out there already doing this or something like it? Has anyone considered ways to do PDCs and get more people certified that don't involve having to contribute money so that those who have things like time but not funds can have access to them as well?