US$10M... good answer!
The more relevant difference is that the simulator at Oxford is not type-specific, but (I believe) 'BASED' on a 737 Classic. I am not sure if it uses genuine Boeing 737-400 flight dynamics?
Not many companies use Level-D full flight simulators for JOC, because the motion is not necessary. FFS sims are mainly used for type rating training and recurrent training.