Some parts for different cars are more expensive than others, it cost me $3700 to replace my axles on my jeep, but I replaced them both by myself in 5 hours front and back.
Any car that is over 10 years old and had some young ass kid try to drive the piss out of is would have ate dirt years ago. Something that has been babied and driven a few times a week will have less miles and show less signs of wear. These are the cars that you find that still run and ain't beyond fixing were taken care of, and it always shows.
She bought a truck for less than $200, and she knew that it wasn't going to last. She knew this was an old car. She had someone else look at it. The only thing was she may have driven it to far or ran it to hard after she got it. She did not make a bad decision IMO. I don't think she has a new lawn ornament that will never move again, just something she is worried about as she was told one thing and now something else is occouring.
Not to get on your case, but I don't think she was in that state of mind.
The fact is that you can add fluids to a car for years. My truck before I put a new engine in it used a quart oil a day. It still started up on one crank every time. Fluid loss is not a big deal as long as you don't run the fluids low.
They are cramped, however, it can get worse. Any front wheel drive car is hard to work on. My escort was a pain in the ass to change oil on as you had to take it off from under the intake manifold, but had to take it out from under the car, and shimmie it through the exhaust. My EXP is that rear wheel drives are the best to repair, as you almost always have more room to work. I have a Jeep wrangler, and I can't think of a task that would take more than 7 hours to do. Hell, I bet I could do a clutch in 6.
The trade off is my Jeep only gets 15 MPG, my truck got 20 MPG, and my escort got 30 MPG. Its funny how the more compact you get, the cheeper it gets to drive.