'Rally Chair' a license to daydream
Even if it's not a gaming system, you can pretend.
OK, you can at least pretend to have a racing system--and probably be a lot more comfortable--while continuing to do your work in a "Rally Office Chair" that sports a "genuine 'Cobra' seat" mounted on a swivel base for around $300 or $400. Depending on your price range, you can choose either geniune leather or "'leather look' vinyl." That's one classy ride.