Unless you don't happen to live within the city center. Train stations frequently have zero long term parking, while airport frequently have cheap or even free long term parking. If you need to take the train where I live, then you're better of driving to the airport and park there. Then take a train or bus to the city center and the train station.
I did like to take the train more often, but travel times are just to slow. I'd need to set aside one day to just leave the country, then maybe I can get another train somewhere in Germany and then I can get pretty much anywhere in Northern Europe in a reasonable time. It's just that train travel in Denmark absolutely suck and is fairly pointless and you almost never travel more than 80-90kph.
I did like to take the train more often, but travel times are just to slow. I'd need to set aside one day to just leave the country, then maybe I can get another train somewhere in Germany and then I can get pretty much anywhere in Northern Europe in a reasonable time. It's just that train travel in Denmark absolutely suck and is fairly pointless and you almost never travel more than 80-90kph.