Secon Life's Purposes

I asked some people why they use secondlife.I can divide into three groups these purposes according to their answers.
When I asked it somebody first time,he laughed at this question.I was surprised it.But he and a few others said that they use it to enjoy.Namely, they use it as they just like it.For the second group can be said that they use it for having friends or meeting new people.And the last one can be said that they use it as they are alone.Namely,they use it to talk people, not to get bored or spend time.
In conclusion, people use it for different purposes.But everybody whom I talked like using it.