My local library reports that one reason their ebook selection is low is because four out of the “Big Six” publishers do not allow libraries to purchase their ebooks and the other two either have restrictive purchase policies are charge libraries more for ebooks.
In other words, these publishers are acting like Blockbuster in the early days of Netflix.
Change is a bear. I understand wanting to cling on to profits from your traditional business model as long as possible. But, just as Blockbuster learned, it works out better to be the change agent than the stick-in-the-mud.