Sport Chalet has the Kelty Mockingbird backpack on sale for $74.96, plus free shipping. Tax is charged, however, depending on where you live. You can read my review of the Kelty Mockingbird here.
If you want it in black, or if the Sport Chalet inventory ends up selling out, you can also get it from Huckberry for $75, though they charge $9 for shipping. Their offer ends in three days.