Sorry I dragged us in to the weeds here. Nonetheless, I think FSDT needs to look at airports that have international traffic so they can bring in the $. We want them to rake in the cash so they stay around for a long time.
As I said, I only buy Blueprint stuff when I must have a specific airport. In FSX, DTW is the only one I own (and I have a lot of scenery). When SSJ releases their version, the BP DTW will be uninstalled. I am sure I am not alone with this strategy. Imaginesim's scenery is more advanced and I they can be compared to Tropicalsim. I won't replace their airports unless something really amazing is released AND it is a key airport for me. I plan to replace the TS MMUN with the AMS version when it is released.
The point is FSDT needs to look at its actual competition - Fly Tampa, Flightbeam, Aerosoft (Simwings...) and maybe LatinVFR (yeh, I know). Competing with an existing IS, TS or T2G airport depends on the product and its age. Blueprint should not even be figured in to the equation.
And as I am typing, I think I may backtrack on my comment that ATL wouldn't be a good choice. According to what I said above, it may be a good option. Nonetheless, I just don't know what anyone can really do with ATL - the airport has absolutely no charm - no water, no mountains, no impressive architecture, no exotic AI, no above ground monorail (except for MARTA). Maybe if they put a lot of work in to the surrounding area it could work but I just think it lacks that wow factor that will get people to dump their IS version.
Still, I think IAH is the lowest hanging fruit followed by EWR. I like IAH more because it is on the Gulf Coast - an area that has little add on scenery.