In fact I wanted to make the courses available for free, and I did keep some of them accessible for free. Got lot of new students registered very quickly.
However, looks like people don’t value free stuffs! Many students never visited back to watch the videos and learn.
So, I decided to sell it for a price, which is almost free, but still people had to buy it.
Now I see that only serious people register for my courses. Not only that, they also watch videos and often, enrolled for another course.