How do disney theme park exclusive items compare in cost to the same items sold?

The single source supplied is a Wikipedia article summarizing the Frozen franchise. It contains details about the film’s production, expansion into various media, and related attractions, but it does not mention any pricing data for merchandise, whether sold at Disney theme parks or through other retail channels. Consequently, no comparison of costs can be drawn from the evidence at hand. If you need that information, you would need to consult specific Disney merchandise catalogs, official theme park retail sites, or retailer pricing data.