When you are doing brakes on a used car, always check the bearings.
It's not hard, and it'll help you sleep better knowing they are safe.
Any job you are doing to a used car should be parlayed with other jobs that require removing the same parts. Not because it's in the service manual, but because it's common sense to understand what is worn out and what is not.
Let's say the PO liked to ride the brakes, maybe they cooked the grease by overheating. You aren't going to see that UNLESS you take it apart and check. I find it very hard to believe that someone working in the repair field for 30 years wouldn't do the same. That's probably one of the reasons the dealer put it out there(that and it's easy money). Problem with dealers, they typically use standardized repair times for jobs, but they often don't remove the overlap. Either do it yourself, or find a reputable indy who will only charge the extra time for fixing things "while we're in there"