Its a good holding suggestion- in the future look at ALL company highs/lows and buy accordingly (so what if it takes 6 months waiting for a low price- your 85 gave up 6-7% of gains, that's a whole year of divs; yes I realize you can never hit the low) this co runs 79-91 approx. and could break up toward 100 in a great market.
You should be buying more. I snagged a bunch at 78.10 and Im holding for the long haul or atleast until it gets into the high 90's. Im very excited about the prospects of this company. None of the fundamentals have changed and the short term interest rates havent changed. In fact short term rates arent likely to rise until 2015. Once I can get a CD paying 6%, I may look at selling but until them Im holding.