That'd be folk like me theb. Rof has to be one of the priciest games I have, even if you take into consideration fb, pf, aces and 1946. Easy £100 spent on rof for ultimately a lot less. Even buying the two bombers in rof is close to what I paid for the game itself.
Single or paired aircraft as dlc is, imo, not a good idea. I'd be disinclined tocontinue with clod if it went that route. It limits online map makers, means players won't, for the large part, try those weird and unpopular planes. Theatre packs is a different matter, and follows the same model as il2.

I'd take a theatre-pack, even smaller ones, over single-aircraft DLC's any day of the week. Single-aircraft DLC would be tremendously stupid, and would lead to the famous FOTM-mindset (Flavor Of The Month), where everyone will buy and fly what's percieved as the "best" aircraft.

I want this to be a sim where your performance is based on the pilot's ability to keep track of what's going on in relation to his own aircraft, his ability to manage the aircraft's systems and pure blind dumb luck (it comes down to that at times as well). If I want to play Battlefield, I'll go play blasted battlefield...