To me at least, it's not just about modelling everything from the details of every radar mode down to the air conditioning; It's about providing an environment to put all of this to practice as well. That's what I like about BMS, that it provides all of these different weapons and features, and a dynamic campaign where it's all useful. Unlike DCS, where it just doesn't matter if they'd get an F-16 with everything it has in BMS. The fun would stop dead in its track the moment I'd learned it all, because from that point onward it wouldn't be much more than a target shoot occasionally interrupted by an AI trying to shoot back.