When we bought my wife's Lexus through Costco, from a dealer about 100 miles away from our otherwise expensive area the deal was incredible. They had higher factory incentives, did the 0% financing as an AND versus an OR so it could be paired with the cash incentives, and the negotiated price of the vehicle itself was low. I even asked the sales guy directly if we were to buy in the future could I call him directly, and he shrugged and said that the Costco pricing was essentially brutal to them, especially since we wouldn't be back for service and opted to not buy any accessories, etc.
After that, I was pretty convinced if I buy a new car again, it'll be via Costco and a secondary market dealer. However, I now have the ability to purchase FCA products with "employee pricing". I'm not to enamored with the choices, a Gladiator is probably the most interesting option, maybe a Ram 1500. I'd be up for either if employee pricing is such a deal that it makes sense to limit my choices to FCA. However, if it's not that much of a difference versus what I could get via conventional buying via Costco, I'm not going to bother.
For those of you with this kind of discount, is it worth it, and does it influence you to buy from that brand even if the choices aren't necessarily exactly what you'd go with otherwise?