It has it uses. Interior of molded plastic structures e.g. cases for appliances etc. Where the variables used are important - material used,strength - and painting and transporting are not an issue.
Definitely agree. Moulded plastic would be one of the better ones. Castings would be ok in some circumstances though the interior cores could be a pain to control, eg: ensuring the sand to create the voids is solid enough not to disentigrate as you try to cast and is not just floating in mid-air.
