Not so ironically, roughly 70% of A.net (including many of the younger members) probably views your statement as a rational one. For the remaining 30%, who recognize that airlines are in business to make money and not to simply have the newest fleet (a corelation that is loose at best), NW's decision to paint their comparatively older but notably paid-for, revenue-earning airplanes with a less expensive livery is a remarkably sound decision.
Mike- You're giving Stretch a big benefit of the doubt there with 70%. Probably the vast majority of folks here would agree that even NW
's oldest 744 is only 1989 vintage (and newest a year old)....is comapritively youthful in terms of widebodies, especially.
And given the massive list price per copy, they had better be flying them for years to come.
Stretch- you do your credibility an injustice by saying something that ignorant, IMO.