Yep,think about 1/3 lb cooked meat per person.
Packers ,you can think about one lb uncooked,have enough for all,a couple walkins, and maybe send home a couple doggy bags.
Thats about 72-75 lbs uncooked.
A light case of packers runs about 60-65 lbs.
The price is better than buying less and will yield you around 1/3 lb cooked /person.
If you got some kids,cook some hotdogs,as they'll fill up on junk and not eat the brisket.
Cook about 5 lbs grocery smoked sausage,cut in one inch chunks and set out with some mustard.
keeps the wolves at bay.