Lexus GX 460 or GX550?

Currently riding around in a 15 year old 4Runner which has been great but getting up there in age and miles. I've had Lexus's in the past and kind of miss the niceties over the pretty basic 4Runner as well.

Would you go with the GX460 or the newer 550?

I like the styling and power and tech of the 550. Also I like the liftgate instead of the swing gate.
I like the overtrail version and value off roading and cargo space over a third row.

However I like the robustness of the old v8s, and the interior with physical buttons on the 460. Obviously I like the price of the 460s more than the new ones as well. Gas mileage is kind of a wash it seeems like, especially when you pay tens of thousands more for a newer model.