If you want to know why you should be considering OER (and you definitely should) have a look at this one page article on the Campus Technology site
6 Arguments for OER (and 1 Against)
Here’s a quick summary
- its cheaper for students
- it improves enrollments
- no publisher forced textbook updates
- ability personalized/customize texts and resources
But – its takes more time.
http://campustechnology.com/articles/2014/08/27/6-arguments-for-oer-and-1-against.aspx