Let's see if I can cover this entire comment thread in one comment. Taking a break is good for most people. It can help prevent burnout. People vary greatly in their ability to take vacation due to income, work and family requirements. People vary even more in what they consider to be a good vacation. Some people like a lot of activity. Some people like lying around. Some people honestly don't like taking time off wo…
Personally, I like my company's policy of giving periodic sabbaticals, in addition to vacation.