Doll house for my boys?

This is what happened if the boys are the one playing a doll house. All of the dolls are set aside on the floor, replaced with dinosaurs. I guess it's normal since they are boys. We got this doll house from my friends house yesterday and Zach insisted to bring it home. He always got what he want. So we can keep the doll house as long as we want and if they are tired of it, then I guess that's the only time we can bring it back.