A lot of investors think, that place all funds into bitcoin is the right decision. But you need to understand that it will bring less profit than investing in altcoins.
I love and i trust bitcoin really well but i dont place of my funds into bitcoin, because right now there are also many altcoins that is very profitable to invest our money, and i think putting the 70% of our money with bitcoin is really good thing to do and the 30% is to invest with some altcoins.