I remember growing up, my Dad would tell me any vehicle with 100K miles on it was done....shot...kaput. Even with 60-80K, you were just asking for trouble.
But since I've been keeping an eye out for a new-used van, it's not unusual at all to see vehicles with 200-300K miles on them. Same with trucks. A co-worker has a Chevy with 190K on it and it's still worth mid-high teens where I live.
Any old junker on Craigslist has 150-250K on it, car or truck.
Do high miles really matter any more? I guess a paper trail of service is always good, but it seems like nearly anything made in the last 15 years ought to be good for 200,000 miles or more.