The world economy reduced many peoples disposable income starting about 6 years ago. It will get better, or Hitech wouldn't be bothering with the new terrain engine. As a business owner he is vested in knowing something about future trends in the economy. His continued development of his game shows he is positive about the future and willing to invest in it.
I've noticed over the years many gamers are of a personality type that feeds on emotions out of context to reality. Or they wouldn't be addicted to the feedback from risking their ego against live players shooting back.
Right now there is a premium on enough players to feed their addiction, ergo, the sky must be falling. Then the emotional agreement from other gamers like themselves becomes their fix. Doom on you, Doom on you!! Even if it's all negative emotional feedback, their fix is being filled by the mutual doom fest.
Personally I've invested in this game's future today. My 10 year old TrackIR 3D Pro died yesterday. I just spent $144.00 and ordered a TrackIR 5 Pro.