Amazon has the 15-Pack Monster Energy Ultra Sugar Free Energy Drink (16oz Cans) in Fiesta Mango for $27 - 25% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $19 with free shipping on $25+ or with Prime. Roughly $1.24 per can.