Yeah I was thinking that same thing as well... a bit unfortunate. Though in a way, (I presume) it functions just like a a tree/the vineyards, and the Trunks or Treats would. Not storable, though sellable. Or at least I would assume so, regarding the Easter Candy Trees anyway. As I don't have any yet to relate to.
Anyway, I do plan on buying the maximum capacity of 5, though I'm trying to wait for a gem sale. I have up until Wednesday to see one, otherwise I either don't get these trees, or have to pay full price to get them.