Ask most SEO experts and they will say the same thing: paid search really is not worth the money! There are easier, cheaper and more effective ways to get your site seen on Google. Google makes a huge profit from its paid search (AdWords), something like £1,800 per SECOND. Hence it is in Google’s interest to encourage more people to opt for paid search!
The alternative is the much more cost effective organic SEO route. This is where you perform optimisation tasks to your website through a longer time period to climb the search results ranks. This can take some time, but in the end, you are more likely to be clicked on by people who actually want to buy your product or service.