Each set comes with a list and Harper likes finding each one of his and checking it off the list. He was super excited to get a few that color change in warm water and he thinks it's great to get doubles.
Dakota could care less about the list, she just likes to set hers up in little scenes. She was also excited to get a few that color change and likes having some twin sets as well.
I know these toys seem silly (and a bit expensive for what they are) but these two sure love them and play with them non stop, so it seems like a fine toy to me!