Got about 17K on the OEM Continentals and they were about 4/32.
My dealer had a great tire promotion through Southeast Toyota and offered me by 3 get one free with free 2 year road hazard. Their price was about $125/tire and the labor for mounting and road force balance was $120 (pay labor on all 4).
Free rotations for life of tires (rated 90K).
The car runs really great with Defenders with pressure raised a bit to 35 psi. Smooth and confident wet handling.
Dealer's tire price was (egad!) very competitive. Dealer is out to sell tires.
Anyone needing tires might want to consider these.