Existing Roku owners - check your email for a $30 off rebate towards a new Roku Premiere ($49.99 after rebate)
It appears as if the offer is unique for existing owners.
The body reads:
As a special thanks for your loyalty, we're offering an exclusive, limited-time opportunity to upgrade your Rokuยฎ streaming player. Enjoy a faster and smoother streaming experience thanks to a powerful quad-core processor, upgraded wireless, and superior, full high-definition image quality.
You'll also enjoy the latest builds for your favorite channels*, including Netflix, Amazon, Spotify.
There's never been a better time to upgrade. Shop today โ this deal ends 3/31/17.
edit: This appears to be unique to Roku 2 XS/XD owners.