The phrase "marketable commodity" refers to a product or item that can be bought and sold in the marketplace. It means that the item has value and there is demand for it, so it can be traded or sold for money. Full definition
More than that, Calvinism became so cool it started to become a very marketable commodity and to attract big money. (firstthings.com)
The Phils have Von Hayes (26 homers, 28 stolen bases) in right, but he is their most marketable commodity, and if he can bring the Phillies a frontline starting pitcher and a regular, he's gone. (si.com)
The biggest benefit from a business development standpoint is that you will acquire and hone skills that will make you a more marketable commodity. (lawyerist.com)