I'll just add that the vast majority of improvement listed here are just graphical in nature.
BTW, the flight model has not been changed acording to ACES. What has been done is the flight model of the default ac has been tweaked within the constraints of the old flight model.![]()
Sure, nevertheless now we get better flight dynamics, ground effect, stable helos, and on the graphics "functionnality" we get the moving VCs which make FS9 completely obsolete !
And on the non-graphics side, we get all the multiplayer stuff (tower controller, shared cockpit, smooth flight etc...), the glider experience (finally !!), improved meteo (not just the cloud textures), live airports with all the vehicules, missions, new SDKs for all the new types of addons (the missions once again are good examples), and much more stuff.
Saying that FSX is all about graphics is unfair. Graphics improvements are many, for sure, and they are also those who have the greatest impact on the performance, however even if we put graphics appart, FSX has still a lot to offer.