Even if the price has already soured to $63, it still make sense to accumulate till end of this year. Beyond 2017 it will get difficult to buy. Ethereum has lot of application in real life compared to any other crypto asset and hence I see very promising future of Ethereum and with Google, Microsoft adopting it, the price will skyrocket.
Also, I think there is some kind of regulation on the purchase and sell of these crypto, which will make it widely acceptable by most masses of population in the world and this will further boost the price up, instead of any negative impact.
Like it too sometime to accept any new technology, it may take sometime to accept this new form of asset or currency, but will take less than a year from now to be accepted by most countries like India etc. And once it get accepted in countries like India and some countries where cash transaction are getting regulated, it will have substantial impact on the price of the crayptos positively. Now is the only time to buy. I am buying since it was $13.
Good luck to all! Welcome to Billion Dollar business. :)