To defend the kids, I’m not sure I’d have had a different reaction. Here’s the Amazon.com review:

A former professor of Greek at Yale University, Wills painstakingly deconstructs Lincoln’s Gettysburg Address and discovers heavy influence from the early Greeks (Pericles) and the 19th century Transcendentalists (Edward Everett). The author also probes Lincoln’s decision to rely more on the Declaration of Independence than the U.S. Constitution, a decision Wills says represented a “revolution in thought.” He speaks effusively of the 272-word address: “All modern political prose descends from [it]. The Address does what all great art accomplishes. [I]t tease[s] us out of thought.” Wills’ book won the 1992 National Book Critics Circle Award for Criticism.

That doesn’t sound like summer reading for an 18-year-old. Averaged out, the book spends more than a page analyzing each word of the address.