I'm thankful for this game. It's seriously fun. And I'm thankful my Aunt Carolyn (and family ...) taught me to play nearly two years ago. We quickly taught our friends Jaclyn + Bryan. Now we play regularly, like once a week. And if we miss a week, we're all eager to play. Yes, like an addiction. But it's a good time with good friends.
Oh, and there are other games that spin-off this game that are also fun. Seafarers of Catan + Cities and Knights are the other two we play sometimes. But we like Settlers because we can play three or four games in one sitting, usually with small breaks to tend to our kids.
Another comment on games: I've recently learned Carcassonne, which has made it to my fun list. But nothing quite tops Settlers.