HubPages don’t pay much, just $25‐$35 extra dollars, in addition to the 60% split on ad revenues you’ll get from the page. Plus, they’ll even give you an extra bonus if you
get links from other sites and generate at least 10 visitors from 10 other pages, so they’re clearly wanting these pages to get great rankings in the search engines. 
And presumably, they’re going to feature your page higher on their site, because you’ve created a go‐to page on the subject.