Can I just point out 2 things. Although amazing deals are available with them £300 and less to Asia, South Africa etc. Because of the lack of Frankfurt flight, and therefore 2 stops necessary via Dusseldorf, hardly anyone ever considers Lufthansa from the north east. Also DUS only being 6 weekly and not timed very well for many connections, makes it less favourable.
The other thing is, I never suggested they were the same market. I said they use the same aircraft.
DUS is a good flight, I've used it and I will use it again. DUS is an alright airport, and I don't mind stopping twice in either MUC or FRA because they're some of the best airports I've ever used. I just want to see Lufty and Star grow at NCL with a Frankfurt link. Maybe if Eurowings takes over Brussels from bmi...