Money makes the world go around...
My spend on RoF has been far more than on Cliffs of Dover. RoF offered only two aircraft when I bought it. Since then, I've bought almost every aircraft since and other add-ons, including the Channel map. (Not yet released).
If Cliffs of Dover had been initially releases with only a Spitfire and Me 109 flyable with options to purchase the remaining aircraft, would we now have a more advanced sim?
Best Regards,
MB_Avro