I mailed in the Product Registration Card stub that came in the Aerogarden box and they send you a coupon savings certificate full of rebates. You can get rebates off of seed kits, light bulbs, and all Aerogarden models.
Edit: Also it says that you have to buy it "from an authorized Aerogarden retailer between 9/1/08 and 2/28/09." Kohls, Lowes, and a bunch of other retailers are considered authorized and you guys can see the fulll list of retailers from aerogarden.com.
It looks like this

It's missing the other 2 rebates because I already cut them off and mailed them away.
