regarding the family pack, not everybody knows 5 people with macs who want to upgrade their os.
Family packs with 5 licenses are usually around $200. Share that with 5 people and it's like $40 a person.
Just FYI, technically those 5 people need to be in one household. From the Apple Store:
* Family Pack Software License Agreement allows you to install and use one copy of the Apple Software on up to a maximum of five (5) Apple-labeled computers at a time as long as those computers are located in the same household and used by persons who occupy that same household. By "household" we mean a person or persons who share the same housing unit such as a home, apartment, mobile home or condominium, but shall also extend to student members who are primary residents of that household but residing at a separate on-campus location. This license does not extend to business or commercial users.
Just trying to make sure you're properly informed.