Best way to subscribe to Office 365 for small business?

What's the best way to buy Office 365 for small business users?

I provide support for a number of very small businesses. Some of them have gone or are going to Office 365 for email and / or desktop Office applications. Many of the subscriptions have been purchased through Godaddy as the reseller. Was getting ready to sign up a new customer tonight but had some reservations.

Godaddy offers very competitive introductory rates and you can buy 1, 2 or 3 years at a discount. The Business Premium package that lists for $14.99 / month can be had for $9.99 (1 year) or $8.99 (2 or 3 year). You only have 30 days to cancel or get a refund. So if you decide to cancel and do something different a year down the road there is no credit for unused service.

The best I can tell is that they renew you at the full $14.99 rate. I have an account and just...