This is the Key.
I buy a lot of courses not because i think i Will find the Holly grail.
When i watch a new course related with the subject that i have preference and i find a new setup, a new filter, a new exit, a new robustness method that i can had to the stuff i developed i Will by happy.
I never watch a course or book with the expectation that the author is the real deal and i Will make millions with is method.... If it was shared, probably it wont work in real time.