Eh, if I had the resources, I would put together something like this.
If your passion is flying, a nice flight simulator at home can be a great substitute for the real thing.
As far as the sophistication of this setup, the two computers at the bottom are running the entire thing, one actually runs the game (Flight Similator X) with the other handling display duties of the cockpit panels. Theoretically there may be a few more computers, but they also just handle rendering the cockpit panels.
Try FSX sometime. With a yolk/joystick, it can be quite fun.
Just a really cool video game. Nothing to see here...
Not to defend him, but many hardcore gamers have rigs like that for car racing/flight sims. Some guys spend huge $$$ on custom cars, others on gaming rigs with 3 80 in screens. Seriously. Even gamers into Fallout/Skyrim/Call of duty have huge setups like this. All the components are readily available...pedals, yokes etc and have been for 15 years.
That said, if you want to train, there are worse ways to do it.
