As previously said, things are indexed. I only really have things pinned if they are going to be open most of the time anyway. I use cmd and notepad a LOT at work, and they still aren't pinned (I prefer to WIN + type). So, this is what I have at home:
Explorer, MediaPlayer (or whichever), Opera. Further down, I have the Recycle Bin, and in the notifications area I have Steam pinned.