It wasn't that long ago that ebooks were selling like hot cakes on eBay. Had been looking easy to deliver via an electronic digital download that could be automated and PLR rights were simple to come by. Meaning that simply needed to purchase the eBook once. You could then resell it many thousands of schedules.

<img src="https://crunchadeal.com/wp-content/uploads/2016/10/Amazon-Kindle-eBook.