Even if you have opened the boxes to your Transformers in the past, having boxed and MIB G1 Transformers to sell is excellent. Collectors love receiving their vintage Transformers toys in their original boxes. So, the box adds great value to your collection. Boxes are not the only valuable Transformers packaging, as cardbacks are similarly valuable. Sell your old and used Transformers toys with their packaging intact and get a great price.