Hi @matt.bryant,
One of the key point I use for up-selling Webflow hosting compare to wordpress is the maintainability.
Wordpress is a very powerful and versatile tool but when it comes to plugins used in a project to fulfil the client’s requirements , they are most of the time free and developed by third party and therefore can become out of date when wordpress is updating and brake your site functionalities.
Not like it’s something that happen every morning but when it happens your client will probably have to get a hand from a developper to put everything back on tracks.
So I’m not pushing the idea that Wordpress is evil (I actually quite like it) but more the idea that “Is $192 a year really over expensive for what will be there brand/business public showcase.(or soon e-commerce :))”
On a more detailed approach I will go by : Webflow is making the heavy lifting of security and ease of use to compile with modern web standards, and their team is constantly upgrading and updating those features.
Having one developper at hand to maintain your site this way will probably be more expensive than $20 a month, so for less money you get more people on the job and the warranty of an ever working website.
Just to finish this is only my opinion and how I will sell it to myself as well. And what convinced me in the first place to give Webflow a go.
I hope it will help you going forward with this awesome tool.
Max