Office Home and Student, the cheapest retail option for office, was $149.99 for a permanent license, no upgrades, per computer. 365 gives you $70/yr for latest

Office Home and Student, the cheapest retail option for office, was $149.99 for a permanent license, no upgrades, per computer. 365 gives you $70/yr for latest version per computer. Or, the real win, $100/year for up to 5 people. That's $20/year/person, which is cheaper than buying Office Home and Student for each person and upgrading periodically.