Tesla's current market cap is $25b. Isn't $75b too much of a price premium? To be fair though, Tesla's share price went up by 100% over the past 18 months, so

Tesla's current market cap is $25b. Isn't $75b too much of a price premium? To be fair though, Tesla's share price went up by 100% over the past 18 months, so a 200% increase over the next 18 month isn't unimaginable. [0] http://www.google.ca/finance?cid=12607212 http://www.google.ca/finance?cid=12607212