While I respect your views, I have to present the contrarian view in reply.
Take a look at Microsoft sales figures for their full line of PC-based games. What you will note is the dominance of the FSX series in those sales numbers, along with CFS and CFS2, and to a degree even CFS3. Microsoft made more sales off their FSX line of releases than anything else they have ever released for gaming.
In terms of the role of the add-on community, Microsoft long knew that the time between releases was fill admirably by the vast add-on community. The prime role being that this community kept the shelf life and interest of each release active long beyond the timeframe of any other genre of gaming. This allowed MS to maintain, even increase, its sale base when the new titles were released.
I also disagree with your conclusions about LM's Prepar3D. First, it was never intended as a game. The fact that it can be used as such simply points out to its robustness. In terms of being a low-cost commercial PC-based flight simulator, it has a wide appeal and is selling well. It is certainly not a "vague promise," but instead something realized and available to a customer base eager to use it. However, you are not the intended customer base, but rather a mutually beneficial ad-hoc and tertiary customer base the product was never really designed for. However, Lockheed Martin has recognized this tertiary customer base and has made efforts to facilitate the base.
Cheers,
Ken
Good comment. People keep saying that the flightsim community is small - it is not and sales of FSX have shown that there is serious money in flightsimming too.
MS just developed themselves into a hole they have trouble climbing out of.
They scuttled their own boat.
Don't know why some people vaguely try to claim that the market has changed and that is the reason for MS pulling out when there are flightsim enthusiasts all over the world spending millions of bucks.
Sascha66 said that MS resigned because their __own__ market slumped, and that's the way it was and still is. "The" FS market outside of Microsofts range is alive as never before. And it was not MS who kept that market alive, it was and is the freeware community and on behalf of the commercial side, the payware addon developers. Ever since and it will be so in the future. If MS can't adjust to that anymore, their out of the race, which they prctically are.