so I am copying my reply here, after updating the mileage and making a few other points:
I drive a 98 toyota sienna LE van. I have 140,736 miles on it.
This is a vehicle that I would highly reccommend. I would like another just like it! We bought it because of the excellent safety performance.
The new car price of the 2004/2005 Sienna IS steep though. I would not have a problem with buying one that was used (under 60,000 miles and in very good condition).
The thing I like most about it is the way it handles. It never feels top-heavy. It responds like a sedan. The reason for that is that it is built on a Camry's extended wheelbase. You always feel that you are gripping the road securely. I like the visibility factor too. The seats are in an upright position which is great for my back.
As far as repairs, It did get a new tranny last year compliments of toyota and I HAVE been very good about routine maintenance although I go to a foreign car specialist in my area rather than the dealer now. Great service, great prices, never makes a woman feel stupid.
Other than the normal things wearing just because it has hauled 4 kids around for the past 5 1/2 years, it has been a great car. The carpets are dirty but the upholstery is still perfect, not showing any wear at all. I'm gonna just keep it till it falls apart. I'm going for 200,000 miles now and my Mechanic Mark says that will be no sweat. He has always said that when I'm finished with it he will buy it!
It handles like a dream, is very comfortable to drive long distances, has a 6 cylinder engine that really kicks butt on the highway and still gets 21 MPG fully loaded with the whole family and all our luggage when we make the trek to WDW a few times a year which is 308 miles from my driveway!
I used to go through a set of tires every year until I finally put the Bridgestone Torenza LST's on it. They were much better suited to the type of driving conditions we have here in the south. The tire store I went to kept selling me these crummy other tires and told me that it was the way I was driving that was wearing them out so fast. Consequently they would sell me a new set after 14 mos. or so at a prorated price.
Finally I got smart and did a little internet research. I live in a hot climate. The tires I USED to have were rated very poorly for hot roads. They were literally MELTING off the car. It had nothing to do with me or how I drove.
The torenza LST's are rated better for a hot road surface and even though they are all season radials, they are specifically engineered for driving in the rain. These tires are now one year old and are showing absolutely NO wear whatsoever. They still look and perform like they are brand new. My gas mileage went down 1-2 MPG after we put them on but I'll gladly exchange that for a better grip on the road when it rains, which is often here, in the winter or when the road is hot, which is usually!
The poor person who bought it from the dealer I traded it to wrote me a letter to tell me what a clunker it was and asking what sort of experience I had with it. I had to be honest and tell her the truth, even though the dealer didn't! 
