The achivement doesn't require the helmet anymore. To those that want it for their favorite character. I know how You guys feel. Charr players were always some kind of 2nd class citizens. It's been years I've been waiting for new faces and horns. However I also look at this from other perspective. This is something unique that no other race can wear. Almost like an Legendary skin. Is it worth thousands of Gold? You need to decide on your own. To me it is.
Why does this need advertisement? Plenty of topics about ArcDps around already. It's easy to Google. Doesn't change the fact, and it probably never will, that people want an official ingame feature.