The Sunk Cost of a Bad Book: Are You a Completionist or a Quitter?

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Someone recently said to me that life is too short to read a bad book. Having known this person for many years, the admission surprised me. She didn’t specify her exact “cutoff” point, but I gathered that the moment a narrative loses its spark, she simply walks away.

I recently put this philosophy to the test with Marina Lewycka’s bestselling debut, A Short History of Tractors in Ukrainian. By page 60—Chapter 6, “Wedding Pictures”—my interest was flagging. I found the persecution of the elderly father unsettling, and the rave reviews plastered across the cover felt increasingly jarring. The Times called it “extremely funny”; The Daily Telegraph promised something “mad and hilarious.” I, however, was struggling to see the joke.

Then came the internal “sunk cost” negotiation: I’ve already invested in a hundred pages. I might as well see it through. I did eventually reach page 324. While the plot gained some traction in the final quarter, the journey remained a slog.

Despite its awards and translations into dozens of languages, I found myself in the company of a vocal minority on StoryGraph and Facebook who found the book a “dud.” Scathing critics pointed to “caricature-like” characters and a farcical plot that felt disorganized. For many, the tonal whiplash—mixing slapstick humor with grim themes like human trafficking—rendered the narrative shallow rather than satirical. One reader noted the “layer upon layer of antagonism” made it nearly impossible to finish.

This experience brings us to a fundamental divide in the reading life: are you a “Quick Quitter” or a “Dogged Completionist”?


The Psychology of the Page


Why do some of us feel a moral obligation to finish a book we aren’t enjoying, while others can close the cover without a second thought? It often comes down to a few distinct personality markers and cognitive styles.

  • The Completionist (The “Duty Reader”): These individuals often score high in Conscientiousness. To them, an unfinished book is a “failed” task or mental clutter. They often possess a high Need for Closure, preferring the discomfort of a mediocre ending over the ambiguity of an untold one.
  • The Quitter (The “Opportunity Cost” Reader): This group is often high in Openness to Experience. They view time as a finite currency. If a book isn’t yielding a high enough “return on investment,” they cut their losses to “reinvest” that time into a potentially better story.
  • The Sunk Cost Fallacy: This is the trap I fell into with Tractors. It is the human tendency to continue an endeavor once an investment in money, effort, or time has been made, even if the current costs outweigh the future benefits.

By the Numbers: How Many Give Up?

If you feel guilty for DNF-ing (Did Not Finish) a book, you are in the majority. Data from platforms like Goodreads and industry surveys suggests:

• Average DNF Rate: Roughly 15% to 20% of books started are abandoned.

• The “Point of No Return”: Most readers decide to quit between the 25% and 35% mark.

• The Age Factor: Older readers are statistically more likely to quit books, often adopting “Nancy Pearl’s Rule of 50.” If you’re over 50, subtract your age from 100—that is the number of pages you “owe” a book before you can gracefully exit.

Ultimately, whether you are driven by the grit of the completionist or the pragmatism of the quitter, the way we read is a reflection of how we value our time. As for me, while I crossed the finish line with the tractors, I’m starting to think my friend might have the right idea.

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