Our business had used Facebook Ads for a long time, which did get us a lot of leads. Unfortunately, the Facebook leads were not serious and very few converted. Even fewer committed past their first appointment. So, we put that money into SEO services. Now, we're paying less than we were for ads AND we don't need to put any additional money into marketing because we have so many leads and long-term customers coming from Google each month! We also now rank for almost every combination of keywords possible - so much so that our clients can't even find any of our competitors even when they try!