Anker Nexus 7 Keyboard
The Anker Bluetooth Keyboard works with the Nexus 7 and at $19.99 it is one of the cheapest options we could find with good reviews. There is no case or stand with this option, but for the price it's understandable. Users get a nice keyboard layout with a black or white finish and a small lip to prop the edge of the keyboard up. This model offers 700 hours of battery life according to the description, but users will need a pair of AAA batteries (not included) to use this so no recharging on the road.
$19.99 at Amazon