Regardless of whether or not you decide to replace it, go ahead and take it off. It has to come off anyway, so remove and see if you like. If you feel like it should be replaced, then replace it; there's no need to look at an ugly decal in the meantime though.
I would probably take it off and leave it off.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.