It is good to have options. I think the chrome pipes that come on it are enough. I don't usually go for chrome accents but these pipes do make it look real pretty. Don't think I'll be needing any more though. My GW was the last bike I had that did have a little bit of chrome on it but none after that until now. Everyone is different... make your bike uniquely yours!
I think the chrome pipes look great in contrast to the black parts of the bike. If you are going for looks, a black Deluxe with some extra chrome at strategic locations could be great.
My bikes are always dirty from riding in bad places and bad weather. Dirty chrome stands out, so I like to keep it minimized. My general philosophy is that if the weather is good enough to be washing the bike, it's good enough to go for a ride.
My Dad used to spend a lot of time keeping the chrome shiny on his ElectraGlides. The black ones looked really nice.