i had not noticed that about the enhanced buildings, that is annoying. I was able to upgrade two coco building during the event. What do you mean by paid to enchant one?
Meaning purchased one of the enchantment bundles with real money, rather than earning the relics, etc. randomly through chests.
I have all the stuff for at least a couple of enchantments, haven't bothered to enchant any of the Coco buildings. I just don't see the point (other than to get rid of those annoying bubbles over the buildings, I guess).