I think you need to replace the timing belt when it approaches 90K. Many car owners will claim "excellent condition" but in really it might fall short from that. I got my 93 ES300(110k) 1yr +8 months ago for $9k out the door. The car was in excellent condition when I got it. Previous owner kept every single maintenance record in the Lexus maintenance book. Since I got the car, I had to change the radiator 8 months ago, A/C compressor last month, and the usual oil change. Now my car is at 151k and I still consider it to be in excellent condition. The blue book value on this is at 8k and I was gonna sell it for 5.5k - 6k so I can get a new 04 330Ci. But now that I just installed a new head unit, I think I'll keep the car a tad bit longer.
Here are some pictures of the head unit.