A handful of Idaho hockey fans sued a Boise arena on Tuesday, saying they were duped into thinking a $7 beer contains more brew than a $4 beer. The lawsuit says CenturyLink Arena, home of the Idaho Steelheads hockey team, defrauded customers by charging $3 more for a tall, narrow cup advertised as a “large” that actually holds the same amount of beer as the shorter, wider cup described as a “small.”