MKIV's can be troublesome. Keep a reserve of cash for issues when it gets to ~100k miles.
Bummer. I think it's a shame people don't keep their cars past 100k miles. Buying a new one with that frequency is unnecessary consumption in my opinion. As long as you take care of it, it will go for twice that without a problem. My VW has 210k on the clock and is 21 years old. Still works fine.
I've got an '05 with 138k on it right now. Plan on driving it until repair costs start equalling a monthly payment. I absolutely love not having a car payment. Unfortunately, living in the Midwest with salted winter roads has done a number on the body. I've got some rust around the wheel-well that is only going to get much worse. I predict that in a couple of years I'll be torn between the enjoyment I get driving cars as long as possible and just being embarrassed to be seen in it. I don't need amenities in my car, but if it looks like garbage...I don't know if I could take that honestly.