Just some Quick add-on Research related ideas...

Related to Professional Marketing and Finding $$$ Revenue $$$ {Spins} and Ideas in Regards to Everything WordPress connected...

Whether it's Product type development, packaging of WordPress plug-in's, themes, misc. Services, Consulting, JV's, Brokering deals, Fiverr Outsourcing, Specialized Affiliate marketplaces, WordPress networking etc. etc...

Dig into Finding, Spying, Communicating and Neworking with Other's that are Doing Similar business models, ideas, Creative concepts, Especially with Advertising & Pricing of their Services!

You Can Learn a Lot of Great information that way...

Communicating and Brainstorming with the Competition is Nothing to be Afraid of and Can Lead into All Kinds of Mutually beneficial arrangements...

In my books and Many others, it's All about Researching & ''Spying'' on the Particular needed interests within Select Marketplaces...

And with What Other's are Constantly Up Too and Doing? ...

Testing! Testing and More ongoing Testing & Tweeking of Smart intelligence Out There, Especially the Higher-end of Expertise...

I Can tell you WordPress has an ''Incredibly'' Huge marketplace with Lot's of Professional Services out there...

Low End... Selling for Big Bucks!! Bet Ya! Just Look Around well...

Buying... Selling... Outsourcing... Selling... Buying... Outsourcing...

BROKERING! ... Wheeling & Dealing! ...

Definitely! Study their Marketing Campaign's if you're Aiming for the Higher-end Marketing areas...

Always keep an Open Mind whether Digging into Google, Fiverr or Wherever in Deciding your Starting point(s)

Quick Examples...
http://nolanwalker.com/wordpress-web...bsite-pricing/
http://fiverr.com/gigs/search?query=wordpress&x=0&y=0
https://www.google.com/search?q=Word...ient=firefox-a
https://www.google.com/search?q=crai...ient=firefox-a
https://www.google.com/search?q=word...ient=firefox-a

The Link/Lists/Ideas & related Keyword type Phrases are Truly endless & Easily Simply Done! ...

Phil