I noticed, that all altcoin prices are depending from BTC prices alot. So when bitcoin is going down, all alts are going down. Today we have about 1:10 BTC/ETH ratio. I think when Bitcoin reaches 3000$ and ratio will be 1:10 still, then we can see ETH reaches 300$. Alot of people will give up with Cryptos (especially miners, and young investors who hates red color). Then we will see great difficulty drop in mining, and everything will back to normal. But most important is to belive in crypto. I belive only in ETH, because is a huge platform for Smart Contracts. When ETH will fall, then 90% of crypto's and icos will fall.

Cheers