I don't think that's true. The connector's plating isn't going to make it more durable, that has a lot more to do with the materials and design of the connector

I don't think that's true. The connector's plating isn't going to make it more durable, that has a lot more to do with the materials and design of the connector. Gold plating's biggest benefit is that it won't corrode like other cheaper materials. Conductivity is good too, so you get both.