Brake Shoe cores

Question-- 9 out 10 brake shore cores are NO BIG DEAL --and the cost to recycle them is nearly the cost to buy a new core. For example you have to price in the following:
- dollars tied up in core values
- cost to pick up cores
- cost to write core credits
- cost to pack and ship cores

BUT --there are some cores -as the example in the picture - a parking brake RING SHOE or shoes like 795 with special levers attached --where maybe there is some justification for a BLENDED LINE -- most are new cores and a handful are rebuild-able cores -- much like we are going to for the CV program.

Opinions? As a point - the 781 core adds $20 at the supplier lever - that works out to $30-$40 at the garage and end customer level.