MSFS has much more to offer than just flying cattle cars and Cessnas. Although airliner pilot's are probably the majority there is a significant number of people that like to fly WWII, Golden Age era aircraft, gliders or bush planes. Just look at all the add on aircraft available for MSFS. None of them need overly complex modern systems beyond what was available in the forties. Oleg's damage and flight model combined with the level of realism found in the latest generation of piston engine aircraft for FSX (
http://www.a2asimulations.com) would be a very attractive combination. Especially flying gliders in SOW with it's announced dynamic weather system with realistically moving air masses should be a superior experience compared to FSX.