> I just wish they were more financially competitive.

I'm doing Paris <=> Wien, and it was financially competitive to airplanes. 100€/person/way (ok cheapest seat rate, that's probably very uncomfortable... I'll see) I had 240€/person/2 way with airplanes. I just checked airplane prices again and that's still pretty much the same prices (a bit lower than train if you accept going to the FarAwayAirport, much higher if you take the Airport on a train/subway station)

It does take a lot more time because it's one train every 2 day and arrives a bit late to do train => home => workplace, so if you value being where you want to be when you want to be, you could probably say that airplanes is more competitive)