True mate, but dont forget the many others planes that have been released. RoF is not gunna give you all the planes you wish for for certain, just more planes. The only one you wished for and are given in RoF may be the sopwith camel for example, if you get my drift.
Their plan is if the plane is in the game, then they plan on adding a flyable version of it. Their business model is such that the only thing that the customer will pay for are the new flyable planes. If someone doesn't wish to fly a certain plane, they don't need to buy it. New content (missions, campaigns, AI vehicles and planes) will be free and you won't lose out on any new content if you decide not to purchase the new flyable planes.
Though, not innovative in anyway, it still is an interesting business model and if they can keep a steady DLC release schedule it should be reasonably profitable for them.
Anyway, just downloaded the new planes and I'm off to hunt the Hun in the Sun.
ack-ack