I literally leaped over a bench in the BART to get to this man and this is why:
I think instead of asking him shyly whether I could take his photo, I screamed: I have to take your picture!
I love seeing this kind of attention to detail and composition in an outfit. Turns out it was David's birthday (Happy B-day from SF Styleoscope!) suit (ha,ha), BUT he assured me he dresses like this on a daily basis. This makes me happier than I am comfortable admitting.
He works at Nordstrom's as a stylist, so if your style needs a pick-me-up, he is so your man.