There is no one-size-fits-all answer to this question, as the best reason to hire a Google+ SDK developer depends on the specific needs of your business. However, some potential reasons to consider hiring a Google+ SDK developer include: - They can help you take advantage of Google+ features that can benefit your business, such as Circles and Hangouts. - They can develop custom applications using the Google+ API that can help improve your marketing or customer service efforts. - They can provide insights into how people are using Google+ and how your business can better utilize the platform.