The overall site navigation menus and use of text and graphics have to be very much limited in every business template. If you use too much text the visitors will feel lethargy to read. At the same time excessive graphics to make the site standout in the crowd is no use if the visitors do not get the clear idea about your website. The navigation menus have to be bold and attractive to the visitors. The overall site needs to be user_friendly.
Buy business web template with total customization option. You may get layouts in the market designed superbly but with little scope of customization. On the other hand if you go for open source developments like the Drupal, Joomla or others then you should buy layouts designed for particular themes. Otherwise your developers or the designers will face problem to make layouts completely fit for your business. Even in SEO related changes there will be problem.