I have a route where I'm running 2.5x for 20 Euro....
STRICTLY to prove a point to a competitor how bad of a business move it is who is doing the same routing. The income for the plane is something like 26,000 Euro... for 1510 passengers. Dude, come on. Anyway we did this back and forth during a 2 hour war today to several airports and eventually the point got across and we're back to 737/727's. Only one route seems to be left for whatever reason, I think just to stalemate the route.
Anyhow I noticed that while my LF stayed within +/- 1% and my daily passengers went up due to the A300's (during the little battle today) my DOP conversely went down about 3-4%. The A300's seem to actually be a leach on your own DOP as well.