Behold! The McDonell Douglas MD-90! One of the more beautiful commuter planes in service. Swept back wings and a long fuselage, it looks faster and sleeker than, let's say, a Boeing 737. Although its small frame limit it to interstate-ferrying chores, it is a pleasant sight to the eyes. Unless you're holding tickets destined to the back, that is. (Letsee...60a, that's down the hall next to the engines! Have a nice flight!)
But it has a fatal flaw.
