Nobody knows for sure the future development of crypto prices, because they can be volatile. But in my opinion, although BTC dominates the market at the moment, altcoin prices are slowly increasing. Today we are seeing ETH rally from $ 625 to $ 700 and currently ETH price around $ 685 is likely to go up again and I believe that by the end of this year at least the minimum ETH price can reach $ 750. For the short term, we have made a profit and there is nothing wrong with investing in the long term, because everyone is very confident that altcoin prices in 2021 will experience a rapid increase compared to prices this year. Who knows