Seems a bit high for dealer rate but every dealer has different labor rates. My local dealer uses a lower hourly rate for service work like brake jobs, some suspension and other odds and ends. It's like $50 less per hour compared to the regular shop rate which is over $200 now.
Smaller independent and chain stores around me are less per hour labor rates. Ranging from around 150-190 a hour. So they will always be cheaper than a dealer. From what I see and being in the parts business I hear brake jobs are ranging from $500-700 for trucks now. For a rough example, a local shop is buying the higher end rotors and pads for about $150-200 total, then you double it for re-sale, plus the labor. This is non-dealer parts I'm talking about.