Then why did Mathijs ask for suggestions from thirteen categories? I don't know much about software development. You probably know more than I do. But, I still say that if you were to include only one default aircraft, AFS2012 wouldn't go over very well. RoF got raked over the coals because it only had two aircraft, at first. Later they added the other two for free because they got so many complaints. Also, if you do only one aircraft, I still say you couldn't do something like a Seneca or Twin Star. Beginners would never be able to fly aircraft like that. They would get discouraged and quit, and that would just about be the death of flight sim. I can still remember the first time I played FS98 thinking, "I'll never be able to do this!" It was a long time before I could do it well, and I was flying Cessnas! I can't imagine what would have happened if I had been flying a Seneca or Twin Star. To this day, I still prefer flying small, slow, single-engine props. I could fly airliners, but they're not nearly as fun, to me. I'll be perfectly satisfied if there's only one aircraft, as long as it's a Cub or a Cessna. And I know there would be loads of simmers who would be livid, if there were only a Cub or a Cessna. Just as I would be if there were only a Seneca, or Twin Star, or 747.
Well the whole point of me suggesting only having a single aircraft was to increase the development time, and allow them to concentrate on the foundations of the simulator. More aircraft can be added later, both by Aerosoft and 3rd-party developers. Better still, get 3rd-party aircraft developers involved from the start to really allow Aerosoft to focus on the physical side of AFS2012. Ultimately, doing thirteen aircraft is just to please people, as you say, and they most likely will be of FSX standard, which was fine for the MSFS market, but probably wouldn't be for the AFS2012 market. It also depends on how they actually design the simulator, because the PMDG MD-11 may have taken years to do for FS9/FSX, but if Aerosoft were to optimise the way in which AFS2012 can be manipulated, they could probably cut down development time considerably.
I think, for me at least, there's a real need for a new simulator. I personally greatly dislike FSX, it's the product of Microsoft pushing very old engines beyond their limit, so would like to see the Aerosoft Simulator around 2012, if not sooner. My suggestion of doing one aircraft, while counter-productive for the market, was just my way of saying "Get the foundations of the simulator right, and worry about the expandable content once the simulator is released".