I think it's funny to walk across campus and be perceived and greeted differently by fellow tie-wearers.
I do enjoy wearing a tie, though. I think it makes me behave better. I also wear a white shirt on Fridays; opposite to the way most people look forward to "Casual Friday". Tara and I go to the temple on Friday evenings. So it's a good excuse to dress up another notch.
I also enjoy wearing a shirt with a pocket in it because it's a good place for my phone, notepad, and pencil. I don't have a pocket protector. I'm a new-age nerd; we don't use protectors.