The question is "why did NG focus on the same airlines, same liveries, the same countries of the world?" I imagine that an important part of collectors (like me) stopped to buy NGModels airplanes simply because the product offered is not interesting for their wishes and their collections and fleets.
Not complaining, of course, just a consideration with a bit of sadness because NGModels are simply perfect and European airlines and liveries are needed and wanted.