If you are interested in one piece and you want to save it for later, you can add it to your Wishlist, and follow it. We don't have a reservation service, but if the planets line up and the tides change, and those trainers you wanted so bad are no longer in stock, we have a Back in Stock Alert, that will let you know exactly when they come back online! We are also available to help you find an alternative, who knows if better things are waiting for you, just around the... browser? http://help.overcube.com/support/tickets/new