Umberto, are you at all pleased with FS9 sales so far??
They are decent, but way less than the FSX version. I'd say that, assuming it will continue this way, FSX represents right now about 80% of the market, the 737NGX was probably what gave it the biggest blow, and of course the new hardware that keeps coming out.
Is still too early to comment on the future, or if we could afford to support a sim with only 20% of the market share (today, but what will happen in 2012, when MS Flight will hopefully be released and Prepar3D maybe gained some traction ?), and in any case it's not really useful to commit on a decision for the *next* scenery today, considering that even KLAX itself was given a definite green light for FS9 only AFTER we started working on its conversion.