The airlines have basically put trains out of business in Western Europe. Currently you cannot get from one end of Denmark to the other for a morning meeting by train.

Last time I checked the only way to have a 9:00 meeting in the center of Copenhagen, leaving from Aalborg (400km away) is by leaving at 23:00 the day before. It's a 6.5 hour train ride. Flying is 20 minutes and you have multiple departures and airlines every morning (granted you have to be at the airport 20 minute early and it a 30 min trip for the airport to the center of Copenhagen).

When people talk about how great trains are in Europe, I assume they never had to used them. Trains absolutely suck, they aren't fast enough, not frequent enough and they are expensive. It cheaper and faster to fly or drive.