I read cozy and historical mysteries, a bit of Paranormal/UF, and to mix it up, I read science and gardening books on occasion.
I've long ago stopped expecting anything different from these... I think the last really different plot was maybe 11? But I still keep happily coming back for more because I'm hooked on the characters. All of them: Connie, Ranger, Morelli, Grandma, Stephanie's mom, Vinnie... even LuLu (who's sometimes a bit too over the top).
Number 23 isn't any different. Total formula, but Evanovich got an extra star out of me because she's pretty much ended the whole who-will-she-choose? charade (no, that's not a spoiler) and she adds some truly classic, rip-snorting, laugh out loud moments. There's always at least one in every book, but this one had me laughing out loud at least 4 times. That might be a new record for me. She might churn these out in her sleep, but she still has the ability to set up the best comedic moments in just a sentence or three.
As long as she keeps me laughing, I'll keep coming back.