Contrary to what deranged Eth shills claim, the "killer app" of blockchains is not "smart contracts".  The killer app of blockchains is currency.  The so called smart contracts are way down on the list and have no legal authority behind them whatsoever, so the best case scenario is that they would be used in a some niche market, legal arbitrage gambling cases.  

Eth is also completely centralized with no obfuscation of who is in control of what, so people involved in Eth are already acting as some form of illegal, unregulated legal services/gambling services for the people at the top of the pyramid, and people acting as transaction validators will mostly be in the same boat when it changes to PoS.  Eth is a scam and the only reason it went up is because they sent the illiquid asset premine they created out of thin air to Poloniex and margin leveraged it higher.  If 2017 is going to be the year of any altcoin, it's going to be litecoin.