The problem is that there’s no guarantee of a deal if you go thru a car negotiator rather than a broker. Yeah paying 1k to get a GT3RS at MSRP is a no brainer but at least with brokers, they guarantee the numbers on the deal and they often have “broker specific deals” Like I know GMs at BMWs that will give a better deal to a broker than to the general public.
That being said, brokers can act more professional. Some of the brokers can be lacking in that field.