Flight Sim add-on?
Probably, a very expensive/extremely expensive, computer build, to suit running my FSX to the max....

...
...but there again, my trusty FS 2004 is perfectly happy on my ancient (2005) Pentium P4 2.8 GHZ Hyper-threading, nVidia 9500 GT, 1 GB graphics...
...so...
...why waste the money?
Leaves more money to spend on other exciting toys to play with!... [smiley=2vrolijk_08.gif]...!
It will cost me well over
Win 8.1 64-bit. DX11. Advent Tower. Intel i7-3770 3.9 GHz 8-core. 8 GB System RAM. AMD Radeon HD 7700 1GB RAM. DVD ROM. 2 Terra Byte SATA Hard Drive. Philips 17" LCD Monitor. Saitek Cyborg X Fly-5 Joystick. ...and a Briggs and Stratton Petrol Lawn Mower.