Ask HN: Selling HTML and CSS themes: unrealistic?

[interfacesketch]

Do you think there's a market still for straight HTML/CSS themes (i.e. not Wordpress or Bootstrap templates)?

Or is the market so saturated that no-one would seriously consider purchasing a template since there is so much free stuff and it's so easy to simply copy a site's HTML and CSS?

I'm guessing any theme that is slightly popular can expect to see copycat themes pretty quickly.

Interested to hear your thoughts. Thank you.