The value of anything in life is determined by correlating many finite statistics. A couple of these values are usage and speculation. As far as I can tell nothing is even close to Ethereum in terms of usage. For this fact alone speculation on the value Ethereum seems to be correct. I personally believe that we will see higher valuations long term. This is a newer field so those that say valuations are high may be correct but those that are "experts" in valuing this new and growing field have little relative experience. I am a long term holder of #ETH as I find the technology to be quite disruptive.