I can sympathize with both camps. I'm all in favor of electronic resources that are available to more patrons in more locations, but, for personal/recreational reading, I, too, still prefer print.
I like the EBSCO e-books because it is a familiar platform to college students. Many of them have used an EBSCO database at some time for research, so the home page and search interface is already familiar.
For this challenge, I tried several searches related to Constitution Day. For example, I put "United States" as a SU subject search on the first line, and constitution in the second search box alternatively as "all text," "subject," and "title." Results were varied, but constricting "constitution" as subject or title only yielded 3 results, all of which seemed appropriate for a research project:
Hoffman, D. N. (1997). Our Elusive Constitution : Silences, Paradoxes, Priorities. State University of New York Press.
Levin, D. (1999). Representing Popular Sovereignty : The Constitution in American Political Culture. State University of New York Press.
Stewart, J., & Burger, W. E. (1987). The Constitution, the Law, and Freedom of Expression, 1787-1987. Southern Illinois University Press.
Of course, one can adjust the search terms, such as changing to "all text" to increase results, etc.
I also tried the PB Publisher search; for fun, I substituted "South Dakota" instead of Nebraska or Oklahoma, and there were no results (presumably, there is no publisher with SD as part of their name with books in this platform), but changing "Publisher" to "subject" returned nice results for a research project on South Dakota history!
I look forward to the time when e-books are more accessible and user-friendly for all.