I love these older porn films. The men are HOT with nice big cocks and they seem to be actually enjoying themselves (vs. newer movies). The lack of tattoos is a big plus for me too. The major knocks on these older films are poor video and audio quality and condoms.
Forbidden fruit in those days, gay sex. Too me the sex between men was more organic. Carnal. An act that was way more stigmatized and less common place than it is today. Gay sex today is almost mundane and boring. There are so many choices and types of men on display now. Back then seeing gay sex, let alone having gay sex was daring and titillating. The sex onscreen in those days allowed gay men to finally witness what our sexual encounters could be and could look like.