I have the Skywalker levitation and I will use it. But definately not in a walk-around situation. The gimmick wouldn't be comfortable in such a setting. And besides that, I dislike using self-levitations in walk-around anyway.
The Skywalker does have its place, though. The most ideal setting would be in a parlor show of about 10 to 20 people. If you don't think you'll be doing that enough to make it worthwhile, you'll have to look elsewhere.