I've worked as a party/event planner. I have no idea where she got $600 an HOUR!!! Maybe for the whole event! Especially if she's going to low end places for supplies. We usually charged by the event, paid employees by the hour and furnished the decor from our warehouses. Weddings and Bar/Bat Mitzvahs were the most expensive, but a child's B-day party would NOT be $600 an hour.