
True, there is no rail link yet out to IAD, but I believe they are building one.
I, for one, would like to see this happen. I live near Philly, which is one of US' main hubs, but I also am not too terribly crazy about USAir. I have flown on AA before, and I really enjoyed them.
Plus, sure it would be bad to see competition dwindle off, but this would open up opportunities for a start-up airline to emerge. That's what's so great about our country and its capitalist ways. Mergers open up competition lanes in the form of new companies to offer competitive services...