For some reason the paint itself is much cheaper on its own when it is applied to an item, it increases a lot more than the value of the paint. If the veil also already has paint on it then its worth even more. My best guess is around 6 keys I see Halloween painted hats sell for around a bills all the time. the purple and the team spirit paints are more desired not to sure about the green. And as far as the price raising over time I highly doubt it will. Next Halloween will probobably break it.