Other than having a structure that makes more sense (i.e wrapping a footer with a `<footer>` tag) why should i be using html5 tags over div tags?

If i use `<div>` i will still be able to use some of the sweet html5 features, so why should i worry about learning all this new tags?

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> P.S: I am aware of video and audio tags that make it easier to embed media
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