Indeed, hype sells and raises prices, look at ETH it cannot handle the amount of transactions with these ICOs but then there are several that can with ease that do not have the corporate backing that ETH does, most people do not even know ETH is a token, Ethereum is a platform that uses ETH tokens. ETH is all hype, they will get so jammed at some point everyone will sell and then we will see nearly half the market cap fizzle away overnight, I would call that a crash, when everyone rejects a token, and the platform that supports it.