Free! Just sign up.
[Update: Crazy demand took down the servers yesterday, so they're extending the giveaway through noon Pacific today! Go if you haven't already.]
Between 9am Pacific and Midnight today, PowerA will be giving away "a ton" of MOGA Android gaming controllers. They'll also be giving out codes for Modern Combat 4, which is launching on Android. That's a $55 value!
All you need to do to get in on this giveaway is sign up at this link, which should go live at 9am this morning. You'll need to cover shipping costs, but this is a freebie otherwise.
Are you thinking about it? Stop thinking. It's a really nice Android controller for the cost of shipping only.