260's come with rubbish small rear spoiler a rubbish turbo and fat ass wide seats,
somewhere around 10k should see you with a nice clean evo 8 fq300/gsr
youll generally pay a little more for something with a forged engine or coilovers and nice wheels. good clean low mileage cars tend to fetch good money cos there are alot of polisher type people out there that keep these cars wrapped in cotton wool all winter.
something with a good spec list youll pay alitte more for cos some people have spent some serious money on these cars to get them to where they are so tend to fetch more money cos modifying aint cheap if you get really drawn into it