Thumb Score: +30

Amazon [amazon.com] has CATAN Board Game (6th Edition) for $29.99.
Shipping is free with Prime or on $35+ orders.
CATAN Board Game (6th Edition) [amazon.com] – $29.99
CATAN 5-6 Player Board Game Expansion (6th Edition) [amazon.com] – $18.49

https://boardgamegeek.com/boardgame/13/catan