DHP3

I just purchased an '02 LX 470 with 81k miles on it. I obtained the svc records from local Lexus dealer. The LX had been svcd regularly and was and still is in immaculate condition... except for a recent alternator failure. I am picking my LX up at Toyo dealership tomorrow with it's SECOND rebuilt alternator. Has anyone had their alternator fail at this mileage?

Thanks in advance....
HP