we know that bicoin is a very popular currency.
bitcoin is not popular yet. it will be considered "very popular" only if it reaches mass adoption and by that time price is going to be somewhere around $1 million.
do u know why bitcoin is so popular?
when you make something useful which is offering something that people do really want, in this case a decentralized payment system that no corrupt banks or governments can control, then you automatically gain popularity because there is a real demand for it.