You guys with Big Jet Syndrome are mathematically challenged (1 MD-80 = 145 seats / 2 CRJ200's = 100 seats ) A given city could be served by 2 MD's a day or 6 RJ's with the same number of seats. Which do you think the marketing types would prefer. Want to trim capacity, cut one or two flights and retain frequency. One flight per day won't cut it. No legecy has the domestic narrow body capacity to take back RJ flying if they wanted to and they don't want to. All the legacies are focusing on growing international, that is where they make their money and REDUCING domestic capacity. Delta is not going to buy any more MD's, more likely they will park the one's they have. Money is tight, they will spend it where they can make the most money i.e. 777's.
The future won't look like the past and my crystal ball says in the future of domestic narrow body flying will all be outsourced to the regionals. In ten years the legacies won't do any of it.
That was a generalized example, but thanks for taking the bait.
Does 1 MD80 ~ 2 CRJ-700s? How about 1 CRJ-700 and 1 CRJ-900?
Redeploy 1 CRJ-900 to cover 2 CRJ100s?
Which costs more, 1 MD80 or 1 CRJ-700 and 1 CRJ-900?
Which costs more, 1 CRJ-900 or 2 CRJ100s?
Stop thinking in narrow terms of a single guage swap for another guage; it's much more complex than that.
And I never mentioned buying new aircraft; I'm speaking in general terms of a systemwide downguaging of aircraft to reduce ASMs.
Your crystal ball's better than mine; I have NO idea what things will look like in five years, much less ten.