Save your money... Many of the webpages they sponsor were made by their own companies just so you would have to pay for it. The other ones they didn't make, you can do for free. You only need to focus on Google +, Facebook, Twitter, Pinterest, Instagram... These other little sites were just made to give low quality back links.
I did a Loooong study on Yext just to see which of it's websites I could register myself. Most of the sites are ones you can do yourself. You can find that by Googling "Heritage Insurance Yext". Hope this helps!