Thanks for the reply - totally agree with points 1 -3 which should probably be here although I get there could be a bit of crossover, but some of us do like long haul for the endurance aspect. 
(I think your private server idea is new so I will copy and paste that into the relevant bit!)
I know what you mean with boredom and it can happen of course. I saw BravoCharlie24 do a good 7 hour flight. In Truck Simulator they do charity runs too - not sure if the same has happened on MSFS but that might be something to build in too.