Well, let's see. The sound program (Audition) goes for about $350 (you can rent it off the cloud for $30/mo.), Marantz field recorder $650, the mics vary from $900-$10,000, travel to and from airshows, tankfest, etc. has been well over $50,000. . . and then on top of that I could say that each sound (mix) can easily take 10 hours (most more with corrections and adjustments). . .
If I give it away it will be to HTC so that the individual files would remain (more or less) under wraps. Even then it would not be a give away product.