It's true that they have a lot listed, although I'm not sure if I'd apply the term "robust" when they don't name any manufacturers. I suppose that like any technology it gets dropped first by the big-name distributors, then the catalog houses, then the grey-market distributors like Jameco, then the surplus places. I may be anal about it but I've always been leery of buyng grey-market consumables like batteries. I guess I'll just have to lower my standards! Tim.