I bought mine at Staples about 6 months ago for $20 in the bargain bin, but they have pretty much all been snapped up. Hurry you may still get one. It is a truely fine WWI sim, IF you use some of the VERY decent patches out. Go to
www.wingsofhonor.com for the patches. They really improve the game. That said, it is a true pity that Sierra didn't allow the pilot to fly two seaters. I would have enjoyed bombing from an FE5, and a Roland, or flying escort fighters like the Bristol. Dawn of Aces (online) did that very well, and even allowed the solo pilot to jump into the back seat to defend the aircraft. Also allowed you to conduct Artillery shoots on enemy positions. That was way cool.
Buy it. You won't regret it.