I've seen a few threads so far and I agree to some extent with most of them. Now the main issue with the staff is that they can't make them work on every class as a single item because of the sprites looking different on every class. I have an idea... why not just change the sprite of the item itself? Like Dudu suggested make it a scarf or something and to be honest, I'm sure many others would agree, the current sprite doesn't even look good or appealing! It's horrendous if you ask me.
There's a very simple solution, yes it will cost the staff some work, but in the end improve an item and make the demand higher. Once this happens you can raise the price for your hard work. The item would work exactly like the Valk Armor, which was split into two class groups, but in our case we would broaden it. I know it's more work, but it wouldn't kill any one scripter to do it.
I myself haven't seen a single cape in game or any demand for them at all... I myself would donate for one, but it's too expensive, only works on 1 class, and they look ugly as hell! Besides looks, in my honest opinion the cape on some of the current classes is a much better choice than sacred wings. I'm sure if Genesis changed the sprite to something different that's better looking, sprite looked the same on every class, and was turned into a single item the demand would rise, people would be willing to pay more in donations and so forth.