Boca, there was no one waiting to upgrade. The earlier flight was a Colgan Air Dash which seats like 80 people with no FC. The later flight I was confirmed on was sold out (including FC). They were only able to offer the FC seat specifically due to letting me take the earlier flight.
By the way, CO will bump anyone when an Elite purchases a Y in advance. How do you think they are able to offer the benefit of guranteed reservations on a sold out flight? This is the first time I've seen them bump someone when a Platinum is waiting on the standby list.
Any way I slice this, it was pretty neat...