About the Poll, the interest about a 3D printed shell is related to the printing quality and its cost. Today, most peoples are using that for their C4CPC expansion, so mainly one is required.. But, if tomorrow the ratio quality/price (close to an injection mold result) is less than 5€ each, it will be interrestign to think about releasing new PLUS games and quantitly should be over 100+ in my case.