Hype only make ICO success in sale, not means it is success in market. But for success in market, i think a project need something real. I mean something that really useful and make people use it. People use it, means more demands.
Nowadays, it is better to invest in something we can really use and those who do ICO with readily products have more chance on a successful ICO, I believed before ICO start they should talk or gather some companies that can support them financially or sponsored them to atleast create a product before launching crowd funding. It is more effective to show product that tons of ideas , we don't know how they can execute.