Anodized arm wand

I am about to purchase an arm and I have a choice of either anodized version or not. From what I am seeing the anodized version costs $30-40 more. Does it in any way reflect the sonics side of things or just the color scheme/preferences etc... In my system the non-anodized version will look closer to what I have but if the sonics differ I will think again.
Thank you
Anatoliy