Ask HN: Would you buy a fast-loading, accessible website template in HTML/CSS?

Are there any opportunities in designing (and selling) website themes that are fast-loading and accessible and written in plain html and css (not Wordpress, or a CSS framework)?

In another Ask HN on web design [1], posters say don't offer design services. But presumably, even when you're developing the backend, you need to reach for a front-end design or template - either free or for sale. The market for HTML/CSS themes is completely saturated though - is it fruitless to pursue this avenue?

[1] https://news.ycombinator.com/item?id=18945658