Whether they are the caddiemaps or the score card, the material from which they are made is still paper.
No matter how qualitatively important they are, since paper is always a porous material that tends to absorb all moisture, even moisture from the air.
Even with cover lamination, maps tend to wear out; it is good to protect them so they can be used again and again.
A good result is achieved by taking care of all the details, including having one's score and caddiemaps tidy and well maintained.
