Because it actually is more artistic mzakpitt. They would actually have a story to them where as now, it's just scene after scene of sex. The story gave the characters context. Plus, the boys in older porn looked natural and shot in real locations where as now, they are all tattooed up and/or bleached and have clean shaven pubes and they are filmed on a cheap set most of the time.
@mzakpitt: Maybe because of the age of the boys?