Been trying for this for awhile. PHX rental rates that weekend are incredibly high. Couldn't land anything, compact through intermediate, bidding up to $35/day. Then, decided to try mid-size SUV at $30/day and hit it. Total, with taxes, is $145.87, a savings of $358.07 (they say) over regular rate.
This is higest rate I've ever paid in Phoenix. Many times in the past I've gotten compacts, mid-sizes and intermediates in the $9/day to $25/day range. Used the link for this one.