Well that's the list price, and it's not really that much when you think about it - just shop around and you'll see. Especially given that boostworx found a AFM problem on the dyno (picked up a lost 15rwkw), and a front suspension bracket issue... good to see some mechanics still know their trade well.
But yeah if you want to save some, do the fluids yourself, the plugs even. Not really hard dropping the oil... undo the screw on the bottom of the sump, dump the oil into a pan, change the oil filter, put screw back on, fill up with motul oil, and bob's your aunty.. umm uncle even.