Many years ago, investing time and money into SEO was the thing to do. Using SEO methods, you could get your website to the top of Google within months. This has now become near impossible these days with ever increasing competition and already well established websites. Getting a page one ranking can take years of work and without any initial ROI (return of investment), it doesn’t fit the budget for most, especially start-up companies.
With paid advertising, you can get to the top of a page in minutes and with successful management can be maintained to keep you there, without your goal conversion cost going through the roof.