How would this store afford to pay its employees, rent and utilities if it only sold things at cost? One store alone would also make no difference, you’d need a chain of many stores.

Routers sometimes have security issues that need to be patched. You should keep an eye out for bulletins and make sure your endpoints have host-based security where they can (antivirus and firewalls).

This is a big fuck you from netgear though -why would you purchase another netgear router when they could just decide not to support the next model and force you to upgrade again for more money?