This time the major reason of upgrade to 8.0 should be easier management rather then the usual security patches. Anyways this time around Drupal has made both the developers and the site owners life easier by adopting WYSIWYG editor, so it is worth a try!
One more major change has been that the ‘views’ has been moved into core, and it means that you don’t have to be a coder to add stuff like sidebar content, slideshows etc…
It is said to be more mobile compatible and has improved the authoring experience.
Advise has been given that one should build the site as new and then migrate the data to the 8.0 version so this being a bit tiresome process I guess you will have to hire developers for this task.