Is sisal or cardboard more durable?

Across the reviewers we read, woven-sisal posts last far longer, with verified-purchase and community reviewers reporting multiple years of use, while cardboard wears faster and sheds debris. Cardboard's appeal is low price and replaceability; sisal's is longevity and stability. Several community threads note that more expensive, high-density cardboard breaks down noticeably slower than cheap pads.