Using a template or otherwise known as a ‘theme’ whilst designing your WordPress website will save you time in the long run. Generally many WordPress themes that are available on the likes of Themeforest contain many of the elements that are required to function as a website today, such as frequently asked question modules, portfolio sections and slider modules, all of which aren’t included in the standard install of WordPress.
By using a theme, which depending on the functionality and usability of the package, will cost you around $40 to $80, but taking on this cost in the initial will actually help you save time in the long run due to now have to program many of the included elements such as the ones mentioned above.
So therefore to summarise, purchase WordPress themes because it’ll enable you to save time, money and keep clients happy when they’re offered all these additional functionalities for a competitive price.