I seemed to have been more impressed with the feedback that FS2004 got when it first came out. I got FS2004 not long after I got my old P3 700mhz, which ran the game only at about medium. It was ok though, and I was quite impressed with the product. From FS2002 in which I could run with full sliders to FS2004 with medium sliders, I can still justify the buy. Somehow I managed to get payware to work alright on it too, another plus!
Having been into real life aviation as well though, it seemed to me that FS2004 wasnt far off from what I see while I fly in a real airplane. The FSX demo runs ok on my new rig nowadays, which is not top of the line, but not bad for gaming either. Despite that fact, unfortunately I was quite disappointed. It wasnt up to par with FS2004, and from what I've read and screenshots ive seen from the forums, the full release isnt much better. Theres really not a whole lot of upgrades, aside from a new interface, cars on the road and animals on the ground, and it doesnt really balance out the performance impact. What kind of computer would we need if we wanted to run payware aircraft with full avionic suites in FSX?
In the long run though, its just my opinion and I don't want to change others opinion on the sim. Its just another sim, just like X-plane is another sim. Though I've pre-ordered it, im probably going to cancel and hold out to see what happens and whether or not DX10 will do huge justice :-X