Elon Musk wants to buy Twitter completely - should he?  According to Fox Business:  Tesla CEO Elon Musk offered to buy Twitter in a deal worth more than $43 billion and take the social media company private.  Musk’s best and final offer was to pay $54.20 per share for 100% of Twitter, and said that if his offer was not accepted he’d have to reconsider his position as a shareholder, according to an SEC filing.