If these items interact with each other or other decor around the park, I could see them catching on a bit more. I thought glow with the show were dumb because:
1) it would take quite a few to make an interesting effect and they didn't sell "quite a few"
2) reportedly, the headband ears were heavy and uncomfortable. Looks like the new styles may correct this one.
3) they ran around $20-$25, I think, and the purchaser isn't the one who sees the effect! You pay the money, but people around you are the ones who see the magic. If they have additional interactive features, maybe the buyer actually gets more out of them