I am pleased you keep cars for an extended period - that way you get the best value - I did the same with my new car ... only just sold it ... as I acquired my LS 400! Really not knocking people who spend on a new car but I cringe at the depreciation! You have more than got your money back from the Toyota!
But the cars need to be good to keep them long term without hassle and disappointmet - Lexus (in my limited experience) fullfil that requirement. I suspect you may keep your Lexus longer than you think!
Enjoy the superb engineering with these cars! Remember, it could be worse, you could have bought a BMW!
Enjoy!