Good to see you again, fellow cheese enthusiast
Be sure to drop by when you have a moment.
A grand cherokee is way out of my price range but I have to say: they look like they will last a lifetime and you'll drive in comfort. 13 years is a respectable age for a modern car. My Vauxhall station wagon has 8 years and I hope to use it for another 8 if I can. Every year we don't have to buy a new one is another year saving up.
If I had to buy one today, it would probably be a toyota hybrid. They have the type where you still fill up with gas, but it has electric motors that regenerate into a small battery so it results in a mix of battery / fuel driving which comes out to double mileage compared to a normal car.