Just to note that I added a little bit of Celgene (CELG) to my prior holdings. I lost sold some Celgene (because it had become near 10% of my portfolio) at $156.74 on October 1, 2013. I believe the news since then indicates it is a very good buy at what I paid today, $156.42. Of course it could go lower in the short run, but see Celgene going over $300 in 2017 if not earlier.
I originally bought Celgene for $59.43 in June of 2007. I held it through the market crash, bought more, and it has been a key stock for my portfolio. Hopefully I am right about CELG's future.