I agree hold off on selling Jess until later on in the year when supplies are low or gone. As for your other dolls... If you don't feel an attachment to a doll and could sell her, I say sell her, but if you are AT all attached, I would NOT sell. Chances are you might really regret it, and having sold one doll for another might give you a type of resentment for the new doll that comes home.

If it is just a problem of space and not money I'd put a few up into storage, and just plan to rotate them.