Honestly, who wants to pay another subscription for something we could pay one time on?
You haven't checked out the pricing for Office 2013 have you? They've made the subscription for Office 365 over outright Office 2013 purchase very attractive.
Exactly.
The cost of upgrading the Office Suite each generation is very expensive and more and more companies and users are sticking with older versions.
By moving to a subscription model, the monthly cost is lower even if the total cost of the service over the two years might be higher than just upgrading each generation. So budgeting is easier.
Office 365 also offers ongoing technical support as part of the subscription price, whereas with standalone Office it's limited time only (unless you purchase a separate support contract). So for smaller businesses, this is a benefit.