Let me explain my part of the answer. This question is merely pertaining to intangible things that could only be felt but not be anticipated. So I welcome every aspect that comes into my life with equal respect, just to have fun, with some learning. I try filling my life with more and more fun by avoiding less funnier aspects throughout my life. But as of now I can't say this is what gives me fun but I hope, time has a way of finding it.
Perhaps the above argument could be well countered by the so called smart people with questions like
1) How do you define fun? (Its not somatic or cosmetic as I said it was an intangible intrinsic feeling)
2) Doesn't your fun(aspect) change with time? (Change is what really makes it more entertaining)
3) Don't you have a vision with a mission? (Only machines got missions unfortunately I am a stupid, simple human being surrounded by smart mechanical machines with mammoth missions.)
4) I couldn't get what are you trying to convince here? (Thats why it was 'ambiguous' as it is always)