because it if first P2P technology , strong coin , limited support , global , low fee , supported by huge trusted members and have very high price
Being first in the race of crypto currencies, yes bitcoin have made so much progress. Like in just 9 years it has been wondering the world and especially in last few years, with help of social media campaigns and media advertisements bitcoin have now being successfully spreading all over the world. And the reason behind it only one as you said, being first and making more profit ratios.