The reason Toyota prices are still so high is because they're one of the only vehicles that are still so reliable (Mazda and Honda are actually great too). I think a 2025 Lexus GX 550 will almost certainly be on the road in 2035. Anything electric I am less certain of because they depreciate way faster and the build quality sucks.
The latest Lexus models including the one you cited are getting in huge trouble for quality problems right now. Anything without a 2JZ is suspect from Lexus right now.