Book WIP and poll

I have a question for you folks who watch me.

I want to write a book on basically everything I know about art and design. Unfortunately that's a lot of work and will probably take 5-10 years to develop in my spare time.

Someone suggested I should set up an online periodical and use that to write and develop images for the book, using subscriptions to fund the process. If income is right I can drop my freelance projects and possibly cut down the time necessary to 1-2 years instead.

So here's the question. How much would you be willing to pay PER YEAR (yearly subscription seems easiest) to get weekly inside access to my thoughts, ideas, and development processes? This would include things like the image above in their entirety with explanation, painting and design tips, and so forth.

Please be honest, even if the amount is $0, because your answers will help me know whether it will be worth it to set such a thing up. And see if you can get your friends to comment also so I have a wide sampling.

Thank you very much!