The first time I know about Bitcoin and what motivates me more is the number of total supply of Bitcoin no additional creation, which was 21,000,000. And Bitcoin is burning down on daily basis in respect of lost wallet device and personal death without living the private key open for relatives to have access to it or next of kin. So, I prefer buying Bitcoin little by little than to trade, trading has a very high risk involved, while holding only need to be patient.