Your customer is the most important asset to your business so why take chances with the information they provide you with when using your website? As part of a more secure internet having a secure website using SSL is now a must. According to Google currently 25% of all website traffic is carried out using HTTPS and this percentage is only set to grow.
Google has clearly stated that security is a top priority for them and they will give your site minor ranking boost if your site is secure too.
If you would like to switch your site over to SSL why not get in touch to discuss your options