No doubt, jus' playin' with plugins is very big. Free advice often covers what folks want to know. The many small, limited-function plugins may be a hard/impossible fit for support-services.

But for websites that are on some kind of fiscal footing, put together for a purpose and have business-like goals, the nature of the plugin scene (the issues & challenges) could support a knowledgeable guide-service & implementer.

Way-most sites will never go for this, but there's a way-lot of sites out there. Price-points both below as well as above the range mentioned here, could be sweet. Especially the cheapie-deal ... where a savvy provider has a form-driven semi-automatic front that can be run by keyboard labor.

Big problem is, it's not clear where plugins are really going...