Software is something we all understand and see as valuable.
People view software much more valuable than your pdf ebooks and video courses.
The More value the more sales and you can even charge higher prices for the same content.
Those pdfs and courses are quickly forgotten once your customer goes through the content.
Software, on the other hand, will be used over and over and over again.Imagine how easy it will be to sell more stuff to those customers after using your software for months to years.