As another poster mentioned, I think it really depends on the distance you're covering and the hilliness of your terrain. I love the style of vintage bicycles and there is something highly civilized about having (1) a fully enclosed chain, (2) an IGH, (3) a skirt guard, (4) swept handlebars, (5) a dynamo hub. And yes, I know people ride them all over the Netherlands and Denmark while wearing suits, dresses, heels, etc.

That said, I have never viewed this as a practical solution for my commute because:
(1) my route is 12+ miles each way, so I need a zippier set-up
(2) I have a nasty hill to contend with and other changes in elevation, so three gears is not sufficient
(3) I can't ride 12 miles without breaking into a sweat, which rules out wearing business and dressy attire (hence I don't need the full chain guard or skirt guard, but I do need a rack to carry my office clothes)
(4) I store my bike inside whenever possible and sometimes take it on the subway, which means I need a lighter bike that I can carry up/down stairs, and Dutch City Bikes are *heavy monsters* (partly because of these civilizing elements--chain guard, dynamo hub, IGH, etc.)

I find for longish commuting around New York City that a bike with a wide gear range and 7-8 gears, a somewhat sporty set-up, and folding capabilities (for stashing in my office or apartment, taking on the subway, throwing into a cab trunk, etc.) works best for me--hence my Xootr Swift.