Yeah, I never had a problem with it. I've known way too many people from various parts of the world where it is common (i.e. most of the non-European world) and it just seemed so normal with them that I got used to it really quickly. I've even dated the daughters of guys with multiple wives.
I will say that once you view it in a more pragmatic setting it ain't all that, though it does have practical advantages.
Throughout human history, polygamous societies have been in the majority.
Here in America, because a successful and powerful man is not allowed to take multiple wives, he takes mistresses instead.
It would be far healthier for all concerned if this kind of thing didn't need to be concealed, if our laws were guided more by human nature instead of by the purchasing power of spoiled women.