$38 (German version is significantly cheaper)
Moderate to low
Geography, studying of colonization
Small, perhaps with designated roles within the team
10 minutes (but explain BEFORE setup, as setup is a definite time for strategic decisions by players)
widely variable, generally between 30-120 minutes
Great game, relationship between resources and communities, also involves probability/odds in determination of resources. Instead of Catan, could easily call the game Settlers of Jamestown for a US History class for example.