Before I go and invest the time and resources into building this course (which I plan on making quite extensive), I was wondering if there is a good way to first test the market and determine if there are actually buyers out there who are interested. The last thing I would want is to make a course such as this as have no one purchase it.
How can someone pre-sell a course such as this so that they know a customer base has already been built up? Will customers get angry if I ask for money before having the actual course ready?
Thank you in advance to all help and advice with this!