I plan on giving it 4 years, with the intention of buying more the lower it goes. So if it goes down to $10 per share tomorrow or in a year from now, I will add. I don't know what the worth is. I'm not sure how someone would measure it's value based on why I own it. Analyst like to use add revenue as a way of measuring value on a medium, but I think about how often I actually click on those adds and buy something, I think it's a BS metric.
I have read that some analyst thinks its value is below $10 per share. What would get me to sell for a loss, is if the user base declines substantially. I'm okay with slowing user growth, to a point. I just need it to keep it's influential power. FB and TWTR is what decided this election. And with a 12 billion market cap, that just seams cheap to me for a company with global political influence.
Don't buy it because I have it, it may become a penny stock overnight, or they may raise funds and dilute shares. You never know