Is there a way to purchase an app from the App store which demands a newer OSX than I currently have? Let me explain.... I've been holding off upgrading from OSX 10.6.8 Snow Leopard for various reasons but will have to give in eventually. However, Mavericks is right around the corner I'm told, so it would be silly to upgrade to Mountain Lion in the meantime. As for the app I want to buy -it's at a special price for today only, so I was hoping I could purchase it now and use it later, but the App store won't let me spend my money that way. Is there a way around this, so I can purchase without upgrading OSX first?