selling point
A particular feature, trait, or aspect that makes someone or something appealing, remarkable, or marketable. The video game console's unique selling point is that it is functions as both a handheld and a home console that plugs into a TV. The legislation will need a couple of powerful selling points if it's going to make it through both chambers of Congress.
selling point
a feature of a product or idea that is worth mentioning when trying to sell the product or idea. The fact that the book had large type is an important selling point.