I have 2 reasons for me not wanting to do it.
I had a 03 RKC that I added the chrome trim around the speedo that had a little bit of a lip at the top / forward area, it was to shade the gauge from the sun I guess, but the glair that came from it at times would make put my hand above it to block it.
When I was back in Sturgis a few years back I met up with a guy at the dealership in Rapid City , his whole bike was chromed.
Again the glair was real bad walking up to it in the mid afternoon sun, he liked it, but he didn't seem to care for all the finger prints and worn areas from the chaps