I have seen a LOT of really hot stuff since that era. From my experience, every era has its fair share of lame , mediocre and,holy shit that is ridiculously hot porn.
It's easy to see why this was the golden age of porn, from 1969 to 1993, the guys in bi & gay were into fucking with each other, now the bi & gay stuff is mainly just pretty boys that don't kiss & can barely get a boner.