I enjoy being in the woods so much that I don't have to shoot anything or see anything to enjoy myself. Seeing some deer is a bonus. Getting to take a mature doe or a nice buck is just a grandslam.
I have had many deer in my sights some less that 5yds away only to let them walk. Let them grow and get bigger, the whole experiance of me having them that close is rewarding in knowing that I am doing my part in being stealth and also allowing them to mature.