The question is why are librarians fatigued? Fatigue can come from a number of different places. For libraries I think it is directly related to the amount of energy and time we spend on ebooks vs the amount of positive change we have seen in the market. We have expended massive amounts of energy and time, but seen almost no real change; nothing that solves the problem permanently yet or gives us any reason to really think libraries might get there.
Licensing is still the dominant model. This is an unsustainable model for us once econtent hits critical mass. Which is why we are starting to experience ebook fatigue.
At this point in market evolutions there is a tendency for the weaker party to start giving in and tacitly accepting the status quo being imposed by the stronger party. Think of Microsoft's new OS and tablet. It was an unspoken admission that Apple has won the battle. We see this also in the music industry where so many artists are deeply unhappy with the current model, but roll over every time the latest streaming service offers them pennies for their rights. Libraries cannot let this happen. As Bill Rosenblatt argues below, if libraries accept this situation we will be eliminated from the commercial content market. While I think the future of libraries must center on things other than commercial content, it is still important and valuable for many of our patrons and for us. We cannot expect Maker Spaces and other possible innovations to fill the vacuum that would be left in our services if we are eliminated as a source of commercial content for our patrons. In essence, we must continue fighting for an afforable and equitable solution. We need to keep advocating for some kind of Digital First Sale, as the alternatives are not acceptable. If you are fatigued, don't give up.