I understand the resistance to paid mods in more mainstream games, but in the simulation community paid mods are an accepted thing, and good paid mods are almost universally thought to be worth the price of admittance. The effort involved in making a high-fidelity recreation of a specific racecar or aircraft takes a lot of time and resources, and the people who go through the effort of doing so deserve to have their time and costs offset. Hell, I have only made a few free mods, and I’ve made a few hundred in tips off them all the same.