Social Security: The Qualitative Dimension

Last week I discussed some of the factors that go into the decision about when to take Social Security. The discussion was primarily based on working the numbers and coming to the basic conclusion that it is an entirely individual choice based on one's financial situation. This week I want to add to this discussion the qualitative aspects of life that should not be neglected when making such a decision.
To give an example of what I have in mind for this discussion, consider some of these questions: Will I be better able to do some of the things I have always wanted to do if I take Social Security earlier rather than later? If I wait on taking Social Security will I have the stamina, interest and motivation to do the things I want to do now, later in life?