Usually over $4. Available flavors at this price are Sea Salt, Salt & Vinegar, Wood Fired BBQ, Honey Soy Chicken, the other flavors are on special for $3.99.
Available instore or online. BB dates range from Dec - March.
Below are the stores showing the special online, all the other stores around the country have them on special for between $3.59 & $3.99
Dunedin
$1.39
Christchurch
$1.49 (Moorhouse Ave, Hornby, Rangiora stores only)
Blenheim
$1.99
stock up for xmas!!!! thanks OP