I don't take it the wrong way and I got super thick skin.
On many cars in our extended family, the factory nav came with the cars, either as standard equip, or they bought the new cars equipped with nav. I don't mind having a factory build in nav in my Hummer if that is the Hummer available on that lot, but if I have to pay extra to order it, no, I have no need for it. You don't always get exactly the automobile you planned, life is full of surprises.