I have owned this stock for a long time (about 5 years), and it's been my favorite.
Very well ran company, outlook is great and dividend is good.. but I think the stock price has gotten ahead of itself. The PE is much higher than Apple and Google, and their growth (though it's good) doesn't compare.
I sold all my shares today at $131.50. I hope to buy back below $100, not sure it will happen.. but I wouldn't pay more than 15x trailing earnings, and don't want to risk losing my gains.