Microsoft is currently running a preview for the Microsoft Band in their retail stores. Customers who demo the Band can enter to win a $200 gift card just for trying it out. The offer is only open to customers in the US.
Given that the Microsoft Band retails for $199.99, you should be able to use the gift card to cover the cost, minus taxes, of course. Customers can also get a $5 Starbucks gift card just for trying on the Band.
The Microsoft Band went on sale in the US earlier this week in Microsoft Stores, as well as Amazon and Best Buy. Pre-orders are currently available for residents of the UK, where the device will launch officially on April 15.
Source: Microsoft; Thanks to Jason B for the tip!