Why do your Charger Cables have the lifespan of a housefly?

So get them replaced under warranty at an Apple store.

I have had my devices for over two years, 30 pin and lightning. Never had a cable break.

I ditto Raymond; we have a couple of dozen iPhones and iPads here and not one of them has had a cable fail, and only one has had the insulation crack (and that after three years of constant use). You either have had very bad luck or need to examine how you use and store your cables.

Regards.