"If I was a business owner I would snap you right up, another license in the company is always a good thing"
I had a whole three months in the trade when I passed my journeymans exam. The state let me test because I have a BS in electronics.
I took the test because my boss wanted me to and he offered a raise. I would do it again in a second. Having a journeymans card doesn't mean you know everything. You just have to know your own limitations.
When the options are having a card or not, I'd take having the card everytime.