Or increase the initial price enough to cover the N years it is expected to be in service. If you make a 5 year router, charge for that. If you make a 10 year r

Or increase the initial price enough to cover the N years it is expected to be in service. If you make a 5 year router, charge for that. If you make a 10 year router, charge for that. But don't charge for a 5 year router and drop it after 2.