| SEO in the long term is more cost effective- as time passes cost reduces. With PPC cost can only go up. | |
| SEO provides incredible ROI. (PPC bids are expensive, but SEO in the long run brings a steady flow of traffic without too much cost) | |
| SEO can lasts for years. Many sites do well several years after they’ve made the investment in the site with a good SEO. PPC on the other hand disappears the second you stop bidding on results. | |
| SEO has a better chance of delivering return customers. SEO is more about what the customer is looking for. PPC is more about what the company thinks the market wants. | |
| SEO puts the Web site owner in the drivers seat- PPC puts the search engine in the drivers seat. |
Disadvantages of Search Engine Optimization:
| SEO normally takes a relative long time to market. It can take a few weeks or months for a good optimization campaign to show results. | |
| SEO depends on the optimization specialists ability and the competition that exists for that phrase. |

Well, you need not; IF you are NOT keen to make money from your website !