The answer is, “it depends.”. If you have the time and budget to find an Internet marketing agency to partner with, you will get quality SEO work done. You’ll also save yourself time, frustration, and money. However, if you get stuck with a fly-by-night agency only interested in your budget, paying for their work is absolutely not worth it.
https://www.webfx.com/seo/pricing/is-paying-for-seo-worth-it/