Selection bias, many enthusiastic "Yes" replies here, but consider those who are offline/vacation aren't here to reply "No".

For your productivity and health, it's important to unplug and enjoy holidays - http://qz.com/485226/this-is-what-365-days-without-a-vacatio...

For those that replied "Yes" wonder if the majority are from the United States, being it's the only "Rich Country" that does not require employers to provide paid vacation time - http://cepr.net/publications/reports/no-vacation-nation-2013