And there is the problem ….. How does a long lasting durable toy that collectors choose to buy multiples of used on 3rd party sites , that can be again resold help playmobil’s balance sheet?
Well, ditto for Lego, and it isn't preventing them from doing well financially.
Also, buying used sets is a way for getting into it, for not too much money — especially if you are into construction-play, and/or have a world to grow ( particularly one that relies on sets that are currently out of production ). But, sooner or later, one will likely end up making new Playmobil purchases, to add this or that ( or simply because it's about the same price, or sometimes cheaper, to get the new edition, or alternate version, of an item, compared to used ).
Finally, selling cheap looking, ephemeral products, doesn't seem to be a winning strategy for Playmobil, so they might as well stick to quality ( long-term value ), even if that bolsters the used market. Incidentally: Are klickies disposable? No, they last forever ( pretty much ). Yet, that doesn't prevent people from wanting to buy more. Durability, and strong resell value, doesn't
necessarily hinder long-term sales, imo.