The cost-effectiveness of artificial stone sample book materials can vary depending on factors such as durability, aesthetics, and manufacturing processes. Generally, materials such as PVC (Polyvinyl chloride) or ABS (Acrylonitrile Butadiene Styrene) are considered more cost-effective options for artificial stone sample books compared to materials like acrylic or metal.

PVC and ABS are known for their affordability, durability, and lightweight properties, making them popular choices for creating sample books that need to withstand frequent handling and transportation. Additionally, these materials can be easily customized and fabricated, further contributing to their cost-effectiveness.

However, it's essential to consider factors such as the intended use, desired appearance, and budget constraints when selecting the most suitable material for an artificial stone sample book.