Are Replacing Rear Car Speakers Worth It?

I just replaced the two stock front speakers and head unit on my 2006 honda civic and I realized that the rear right speaker is blown. I can only hear the blown speaker when I play songs with high bass or when I turn the volume up loud. I hear from people that replacing rear speakers aren't worth it because you won't hear a difference in sound quality. Would replacing the blown speaker be worth it? Or would it be smarter to just leave it the way it is?

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