I just did my rear brakes, here's what I paid:
Remanufactured (new) rear calipers: $110 for both
New premium (Brembo) rotors: $100 for both
New Bendix pads from Stazi: $50 for rear set
Time it took me to do the job with basic hand tools: 1.5 hours.
Even at an expensive $80/hour labor rate, it should only be costing you about $380.
Screw 'em. Do it yourself, or take it somewhere else.