I've limited my acquisitions of books this year but I'm picking up a few eBooks courtesy of the University of Chicago Press' flash sale. Also note that UCP makes an eBook available for free each month. Check out their site each month or get on their mailing list to see what's available. If you haven't checked out their site, it has links to their blog and so much more.
I have no affiliation with UCP. Also, I take no responsibility to damage done to anyone's budget other than my own.