Selling My Company Stock Part II

Well a few weeks ago I wrote an article about selling some my company held Stock in Walgreens. I am now looking pretty good as it has dropped a few dollars a share for some reason. At the time I was not really worried about it dropping and I still do not want it to drop to much even though I did save a few hundred dollars by selling high, but I did not sell all my shares. I plan to keep the rest in there as a long term investment, and also keep adding to it by getting 2% taking out of my check on a stock purchase plan. I believe this stock over time will really make me some money, but in my current situation I figured adding to my down payment on my house would be worth much more as it is a good investment aswell.