I ran into one of these situations this week. A GC I do a lot of work for had me bid on a 5 unit commercial building. There was a print but no devices or light fixtures were specified. I got quotes for quality electronic troughers and lamps from my lighting guy and I always use spec grade back wired duplex receptacles and 20A spec grade switches. The service equipment I quoted was all GE Powerline Gold Series. I stated on my bid what materials and fixtures I was going to install. Well, the GC got the job but the owner wants to shop the electrical around some more. I was the lowest price on the electrical but the owner thinks some costs can be cut by using less expensive distribution panels/breakers and receptacles,switches and light fixtures from Menards. We don't have a big box store in this county. This owner is a local business owner in our town and one that screams the loudest when people go out of town to buy stuff. Burns me up!