What do autograph books cost in the park?

I'm looking at autograph books on to purchase in advance, and they are $14.95. One review said they are cheaper in the park. How much are they if you buy when you get there?

Things You Should Never Buy at Disney World, From Travel Planner

Disney Autograph Book - Pooh and Friends

Custom Leatherette Autograph Books, Autograph Book Designs, Cheap Autograph Books

How To Score The Best Disney Character Autographs

21 Fabulous Disney Autograph Book Ideas for Extra Magic!

Best Autograph Books for Disney World and Alternative Ideas — Second Dad to the Right

2023 Disney Parks Mickey Mouse and Friends Autograph Book Photo Album

DIY Disney Autograph Book (with Free Printables & SVG Cut Files) - The Technomad Family

Where can I purchase an autograph book prior

Disney Autograph Books, Personalised Walt Disney World Autograph Book, Disneyland, Disneyland Paris, Disneyworld, Signature Book, Photo Book

DIY Autograph Book for Kids to Make - Katieish

How to Get Disney Character Signatures

Autograph Books A Record from Past and Present – Tamino

21 Fabulous Disney Autograph Book Ideas for Extra Magic!

Easy peasy autograph books — Making Main Street