The risk of diversification investment is even lower. Of course, if bitcoin drops, the same is true of what coins you take.
There are pros and cons once you havr many altcoins but there are big chances that you will earn big time especially the altcoins you have already recognized in the market. But there are also chance that you will lose big amount. Be wise in investing. You can have different coin .Dont focus only in 1 coin but be carefull on choosing altcoins.