page 240 of dullness

At  which point do you give up on a book? One that you read for pleasure?

I usually give it at least a few chapters before I decide to stop reading a novel I find uninspiring. Sometimes I keep going for a while past that point, just to make sure it's not just my restless mind looking for new impulses.

But now I'm on page 240 of a moderately interesting one and my yawns of boredom get increasingly frequent. It seems to me life is too short to spend on the "moderately interesting".

But I only have about 70 pages left to the end. I could skim quickly to the last page. But that seems almost as bad as just leaving it.

What if I reach the last page, number 310, and realize I have wasted many hours with no pleasure and learned nothing? What a dilemma.