That is a lot of mileage, but there are so many Toyota's out there that have gone 200,000-300,000. If you are at all worried about the mechanical condition of the car you could have someone you know and trust take a look at it. Then you wouldn't just be taking his word for it. You just have to remember that if you do buy it, it's used. And cars are mechanical and they do break down. If you read some of the recent posts you will see that even having a new vehicle doesn't always prevent that!
I say go with your gut feeling.