unfortunately, the market is very volatile. different crypto-currencies may rise and fall in price. indeed prices were below$ 600 for 1 coin. but quite a positive attitude of all financial analysts suggests that prices will increase.
It is. I do have a great hope that Ethereum will not fall as it did it in January- February. I have been waiting for the greatest growth of ETH. My best stake is 2-2.5 thousand in December. Naturally, the time will show.