Each keyword or keyword phrase has a different big amount depending on the monthly search volume. The higher the search volume, the higher the minimum bid amount. Sponsored ads will help increase your visibility to potential customers and typically offer a higher conversion rate.
It is important to note that if PPC ads are your only source of driving traffic, your search engine ranking will not improve. In fact, the minute you stop the PPC campaign, you will stop receiving traffic to your site. A PPC ad run in conjunction with organic SEO and social media campaigns is a superior long-term online marketing strategy that will result in an increase to your search engine ranking.