One the other hand, how many people would have the guts to short AAPL, GOOG, PCLN, ...etc? Yes, there are a few I personally know but they are the exceptions. One really needs to be bold, but as we age and gain wisdom, we tend to become more timid. Just some fruit for thought.
PS. Yet another reason: Index Rebalancing. TXN to replace the beaten up FSLR: http://goo.gl/crDI3
What do you think is going to happen to the market index comes Facebook?!