It really depends on how you define users. In this exercise, a User is someone assigned an IP address. If they are users consuming average streaming bandwidth, the number supported is far less and more in line with my numbers above.
The numbers I listed came straight from Sprint FIT reports.
Robert via Kindle Fire using Forum Runner
EDIT: Your source says 200 users per cell, not sector. That's more in line with Sprint FIT reports which claim 180 per cell. So 200 per cell is 66 per sector.