Is this Audi overpriced? I am in Highschool?

The real question is whether you want to buy an Audi with high mileage. There are only a few dealers and independent shops to work on them and they are very expensive to repair. Also, older European cars tend to have electrical problems. And then there's a turbo that can fail if the dealer can't prove regular oil changes ($2k plus). I've know 2 people that have bought older Audis and both were money pits. By a more modest, newer vehicle. A Japanese car will be the most reliable. Hope this helps!