Like others have said, it's your bike, do what you want. But I don't want my bike to look like a thousand other bikes out there that have every item from a certain Harley collection on it. I built my bike for comfort first, then for a little bit of extra performance. Finally, I added a few chrome pieces that suit me. I ended up with a bike that's uniquely mine and fits me and my riding style.
My brother and have SGs, his is done with the skulls, mine with Nostalgic (I replaced the floor pans) he is got mags I have lace wheels, both look great and totally different.