That track does look cool, I’m looking forward to seeing the Ice Planet display. Whereas I have no idea what I would do with marbled red track, even if it was free. I guess you could say the train runs over a lot of people and their blood freezes to the tracks.
800 Euros for a single piece is pretty ridiculous. For fun I did the math, it would cost you more than $15000 to make a single loop. I could buy a lot of Legos with that.