Market crashes happen, and they can be scary. But savvy investors have a list of companies they'd love to get on the cheap. In this segment of The Motley Fool's financials-focused show, Where the Money Is, banking analysts Matt Koppenheffer and David Hanson break down the various reasons they would snatch up shares of MasterCard (MA 0.15%), Visa (V -0.59%), Amazon (AMZN -2.56%), and three more.