Well, just imagine not being an Aspie, and being socially adept.......what better than a big, throbbing party to get all those lovely people under one roof where you can go through them one by one, enhancing your bonds with them, winning new friends and admirers, maintaining old ones, sharing interests and experiences and generally showing off how sexy and gorgeous you are? Noisy background music? No problem, that just gives you the excuse to move closer to the people so you can hear them better, and at the same time you're increasing the degree of intimacy. Imagine not being clumsy and knowing how to dance just like they do.....they'll love you for it. And you can feel all superior and sorry for the poor little Aspies who can't take the strain of it all, who have to take up friends one by one in absolute silence, if they can do it at all.
Back to (our) reality.......no, parties like that are just decadent crap, I don't know how they stand it...they do it to annoy decent folks like us, and because they are of weak and undesirable character, wallowing about in an alcoholic stupor, cheating on their partners, wasting resources, and anyway none of them really like each other, it's all just showing off and social gloss, absolutely worthless. They'll be sorry one day when their superficial "friends" are all gone, and all they have is broken health and a trashed house to clean up.
I believe the truth lies somewhere in the middle.