And therein lies the problem.
I like a realistic flight sim as much as the next prop-head, but after a long day at work/university, there are times when I just want to load up a sim and go blow stuff up. I don't want to be dealing with a highly complex flight engine -- I want something that takes some of the work of flying away, and lets me concentrate on the fighting.
I suppose this is partially a nostalgia kick. The flight sims that I most fondly remember -- F-29 Retaliator, Fighter Bomber, F/A-18 Interceptor, Falcon, Birds of Prey on the Amiga; F-19 Stealth Fighter, Their Finest Hour, Gunship 2000, A-10 Tank Killer, LHX, Harrier Jump Jet, Strike Commander, US Navy Fighters, ATF, USAF, WWII Fighters and even Falcon 3.0 on the PC -- had varying degrees of realism, but all were immensely fun while being realistic enough.
Now days, you have the über-realistic games like Lock-On: Modern Air Combat and Falcon 4.0, or the arcade shooters like Ace Combat 6.0. The middle ground is gone. Don't get me wrong, I like all three of these games, but sometimes I want something that's realistic enough (i.e., the F-16 can't carry 150 Sidewinders) but also fun (i.e., I don't have to spend 10 minutes flipping switches before I can even start to taxi).
I also believe that this failure to publish for this middle ground is slowly strangling the flight sim market. The market is currently serving the simulation fanatics or the arcade jocks, without doing anything to entice new players deeper into simulation territory. It's like you've just finished learning to crawl, only to be told that the next step is to run a marathon while wearing a 100 lb pack. Most newbies come in with the Ace Combats, will take one look at LOMAC, and stick with the arcadey games. Some may make the leap, but of those, how many will bail before reaching the top of the difficulty curve?
So this idea revolves around a flight sim that serves the middle ground: accurate enough, but not sacrificing gameplay to the point where it stops being a game and starts being a second job. I definitely like the idea of dynamic campaigns -- Falcon 3.0 did this particularly well -- and providing a catalog of aircraft for the player to choose from -- though maybe the 40 aircraft in Birds of Prey was a little excessive.
And having the sweet, sweet graphics of Ace Combat 6.0 wouldn't hurt...