Does your website generate new clients on a regular basis from its high position in the search engines for the terms that matter to your industry? People are searching for exactly what you offer every single day, does it really add up to not be there? By being at the top over and over again for all of the ways people are searching you are seen as the leader in your industry.
A fair percentage of people believe that Google manually chooses search results based on the quality of the business so being at the top is an immediate credibility builder. You know that you need to do this and while deferring things to next year might be a good idea tax wise its not a good idea for your business.