They are cool. I think what makes it a must have and should be in every kids collection is te fact that right now the 1:1 is ON FREAKIN MARS sending information back to us as we are Dickin around with little toy cars. That thing is truly historic and should be a requirement that every adult schools every kid they see on on the wonder that is the curiosity rover. While not the first piece of trash we dropped on that planet, it is by far the best and most useful and successful. A modern wonder and historic vehicle indeed.