I'm turning 30 next year.
So I've had this discussion with myself on more than one occasion and I have come to the conclusion, it wouldn't be for me, but then again I don't wear polo's or t-shirts, so what do I know.
Bought a TOJ Suiting Wool MA-1 off of Marketplace.
People aren't overstating how comfortable it is -- it really is quite nice. And the herringbone pattern is pretty damn cool.
I'm not going to wear it out for a couple months since it's still pretty warm in Seattle, but this is definitely getting a lot of wear this fall.
I got a stock size 50, I'm 6'1" and weigh about 185.