As we all know it when bitcoin price goes down, most of the coins are heading down too. That's because bitcoin it is the Heart of all coins if its sound then all of the coins are good, if it's Bad then all of the coins are going down too. most of the time other coins are following the bitcoin price. just look up the market right now.
I certainly agree with you. The price of bitcoin has a very big impact in the prices of every altcoins round us. It is important that we follow the price of bitcoin as we decide to buy different altcoins. Bitcoin, as the father of all coins, is mostly the basis of price increase of every coin.