[Yankees368]

This is almost an interesting study.

I have found that stores in large metro areas (such as NYC for me and LA for loren646) were charging for these used batteries, both at different amounts. At the same time, stores in more rural or suburban areas were happily giving them away for free.
Somehow, I don't think they are either supsto give away these batteries, or sell them at all. Something tells me that these reps are just pocketing the money for these batteries.