Not trying to sound like a *** here, but you could also plan ahead better?

I think the berries will roll around again another time possibly. So they may be worth holding onto if you don't mind playing the long game. But yeah I suppose selling them back would be handy, since sometimes you could plan to get that last berry, but real life happens and you can't log on to get it. You would just have to remember to not sell them all at once because of the ticket cap.