Price dropped from ~$39 yesterday. Historic low price since 2015 on these high-end mixers according to that triple-camel themed price-tracking site. Be sure to click the extra 10% off coupon link for both the ginger beer and the light ginger beer (total is ~$31.50 less 10% for each, roughly). I was able to get two cases of the light version with the 10% off:
Light ginger beer [amazon.com]
Ginger beer [amazon.com]
The smaller 6.8 ounce bottles are ideal for mixing single drinks. They run close to $2/bottle at our local high-end grocer.