The thing you offer is a fancy editor for statically generated websites, but for the prices you're asking, I would expect you to <i>host</i> the site as well.
Also, looking at the videos/gifs on your website, it seems to me that the editor isn't even truly WYSIWYG. Sure, the text-areas are WYSIWYG, but you're not editing the content in the templates themselves, which would be way more useful.<p>I also want to second the suggestion to make this FOSS. I know you fear for the economic repercussions, but unless your product is unique and super game-changing (which IMHO it isn't), people will mostly pay for the <i>service</i> they get on top of the product. This can still be a differentiator, even when the software itself is also available as FOSS.