I rarely fly longhaul nowadays. I used to, simply because I had too many shorthaul routes and my only option was longhaul, but it cost me more than it would make me, in the short-to-medium-term. I'd rather buy a 737-400 and put it on 8 routes, than buy a 777 and put it on two routes max, as the 737 would earn back itself in no-time, as opposed to the 777. On 0.5-frequency routes: I tend to only use them if I don't have the option to create a 1-frequency flight.