Thank you, folks.
Obviously, we do not expect all this fancy-shmancy stuff from FSX and we're well prepared for the reasonable sacrifice in FS2004 (i'm not even sure that a word "sacrifice" is properly chosen). Honestly speaking, I'm pretty much happy with old C9 KLAX except for the lack of AES. Moreover, I'm still using C9 EHAM instead of crappy EHAM of other developer.
Bottom line: the beauty is in the eyes of the beholder