Thread:MomoCutie/@comment-33499895-20180530224429/@comment-33872713-20180601101348

If you have the new pets, maybe you can do a trade attempts to see their worth?

Another reason:

When new pets/promos comes out it usually is worth a large amount and is extremly unstable.

It fluctuates for about a month or so and dies down to a more reasonable and stable worth.