Mountain Bike for Games Console Swap ?

I have a mountain bike which i bought a few months ago from Argos which i have only used once but doesnt suit a man of my build (aka im fat lol) would ideally like to swap for either a PS3 or Xbox 360 as im setting up a Gaming Business so would save me a fortune. Challenge Mantis Front Suspension Mountain Bike. Full Specs. •Bronze steel frame. •18 gears with Twist grip shifters. •Sunrun SL-KDSG-03 gears. •Sunrun RD-HG-04. •Front V-type and rear V-type brakes. •Front suspension. •Weight fully assembled 17kg. •48.3cm / 19 inch frame size. •66cm / 26 inch wheel size. •Suitable for 82 to 95cm (32 to 37 inch) inside leg measurements. •Suitable for ages 14 years and over. •Mountain bike style tyres. •Adjustable handlebar height. •Adjustable seat height. If interested dont hesitate to contact me if you have any questions (Sorry I have no Pics and must be able to pick up from East Kilbride)