Shootouts probably create excitement for the casual fan (At least they do for me when I watch soccer), that and it got rid of ties, another thing that the casual fan doesn't like. Thus, they will probably stay. The problem that most people who watch hockey have with them is that they are an unfair way to determine a winner. I think most of the excitement from a shootout win is more from relief that it is from excitement. Although, back in the day OT would have ended and your team would have one point. With the shootout, the opportunity for the extra point exists.