oddspyke
Autocross Champion
I've always found that around 120-140k miles is when it's time to let my cars go. They're usually due for timing belt or chain work, suspension work, fuel system stuff, etc. on top of the normal maintenance and it really doesn't change the trade in value if you do it all. Yes it's less to do it and keep it, but for how long? I don't like the idea of putting $5k of maintenance work into a car that will still be worth $5k (ok $10k in today's market) when I'm done.