Disappointed WordPress continues to encourage AMP. With their nonstandard coding practices, ignoring W3C coding standards, isn't in the best interests in making websites cost effective. Yes, there are plugins but there are so many custom post types, this isn't always an easy implementation. It's costly. Build it once, not twice and not with another set of code because they ignored standards. I know SEO people love it, news sites love it, but I find I leave AMP pages - they are usually unattractive and awkward.