Many companies decide to invest heavily in Google Adwords, often being attracted by the quick results that it can offer. Google Adwords spend varies from company to company with some spending only a hundred pounds or so a month and others spending in excess of £10,000 a month. Usually the more you invest in something the more you will get back but with Adwords you need to ensure that your budget is being spent where it should be and giving you a good return on your investment before you start.
There are so many options and settings within Google Adwords that it often pays to have a specialist set up and manage the accounts for you as they can usually see where the budget needs to be spent to get you the most clicks from the people that are genuinely looking for your products and services. There is no point in just getting clicks to your website if the person is not looking for what you can offer, and a marketing agency will be able to help you achieve this. They will often charge a fee to set the campaigns up and then another monthly/ weekly fee to manage them but this should more than be recovered in the increase in sales / enquiries you get.