I choose not only bitcoin. Yes at first above all it is just bitcoin. If I received any alts, or eth in the signature campaign I joined I immediately convert it into bitcoin. But as the time pass by, I started to understand more the crypto world. I realized that it is not only bitcoin that can give me a big profit that is why I also choose eth and selected alts. It also happened because my friend make me see the reality. He is a trader and saving so many alts for a long time (if I am not mistaken he is alt collector), now his alts has a total of 1M USD. He started collecting it when the price is low and now its price is so high.