Just because you got within range and "outsmarted" the animal, doesn't mean you already sealed the deal. Getting the shot off once in range is an equally difficult half of the process. Taking a picture of an animal within bowrange would be MUCH easier than getting a shot off with the bow and making a clean kill.

And to answer, no. I wouldn't continue hunting if there wasn't a kill. The kill is king. It signifies victory. Success. That all the hard work finally came together. That you CAN do it. The meat is always awesome, the memories priceless...and like Dan said, if I kill a trophy....I want it on the wall, and not in the shape of an 8x10.