It’s a cliche to call some high-interest event the “hottest ticket in town,” but in the case of Wednesday’s Duke-North Carolina men’s basketball game, it’s fair to describe it as the hottest — and priciest — ticket in sports right now. The cost of gaining admission to Cameron Indoor Stadium, at least in terms of the secondary market, has reached Super Bowl levels. A quick glance at several prominent sites Tuesday showed that the lowest price for any ticket to the game was approximately $3,300.