What makes bitcoin attractive for me is an ability to earn money with it without paying any taxes and without this money counting anywhere. Oh, and no need to worry about getting cash, because there are people everywhere ready to give you $ instead of it. Another cool thing is that it is something close to magic. Some numbers with no material subtance which change their price and give you an opportunity to buy something totally material instead
I think It's really popular, which means it can pump prices anytime now. Just like a bank. Bitcoin has its disadvantages as well. But I'm fine with that. Bitcoin is freedom. That's what I like about bitcoin.
This is decentralized. No one can access your private key except you. It's also a fast way to transfer at a low cost. Also good for investment.