It is estimated that over 30,000 sites a day get hacked. Yes you read it correct a day not a week or a month. With these numbers what are you doing to reduce your risk of being in these stats? With all the work you put into your site and all the content that you created are you willing to risk it? Majority of sites get hacked due to simple procedures that could have been implemented that people are not aware of or not capable of implementing.
When it comes to your website it is your public identity and deserves some protection. Besides implementing some security features it is also extremely important that you have backups of your site in case of an event.