Are you a re-reader?
When I was a librarian (dayum, what a fun job!) one of the many fun discussions was about whether you re-read or whether 'life's too short" to re-read. I'm a re-reader... but that's maybe because I love character-driven novels. I like to hang out with these characters (Goblin Emperor
is my latest delight). Lois McMaster Bujold is another... can't find her quote now, but she said she writes character-driven novels because she likes novels about people you want to hang out with.
But I'm also finding that plot-driven (Agatha Christie fer sure!) are fun just to see how the cunning hand pulls the wool over the eyes.
That said, of course there are fun reads that are once-reads but I don't go back to. Well, at least not now