We do need more north American airports in FSX. I support Umberto all the way regarding EU vs. US scenery.
I agree also. Aerosoft and the devs they publish pretty much have EU covered to a great extent, at least most of the more popular and large cities. In the US we are still lacking the following.
Seattle
Portland
Salt Lake City
Tucson
Albuquerque
Denver ----- Better version than Imaginesim
Oklahoma City
Houston ----- 90% chance FSDT will take care of this once according to Umberto
Minneapolis
Indianapolis -----Better version than BluePrint
Memphis -----Better version than BluePrint
Detriot -----Better version than BluePrint
New Orleans
Just to name some of the larger cities that could either use a first make or a remake of a previously published scenery from another developer.
Given how long (aprox. 8 months) it take FSDT to produce an airport of great quality, they would be busy for years even just attempting 5 or 6 of these cities.