The liquor store sure has changed. I popped into one last week to grab some Finnish Long Drink for our dog sitter. I left having seen the very embodiment of a trend.

A massive display of Svedka vodka sodas and teas greeted me at the door. Other floor displays throughout the store pitched bright-colored cans of premixed cocktails, like a gin and tonic from Bombay Sapphire. Newer canned spirits brands such as High Noon and Cutwater stacked the cases high and sold them – at a premium.

An entire section of shelves was permanently labeled “Ready-to-Drink.” An endcap display, big enough to incorporate a full-sized bicycle, marketed a product from craft beer trailblazer Dogfish Head (eventually acquired by Boston Beer). The display wasn’t for beer, however. It was for canned cocktails by Dogfish’s distilling unit. Even Dos Equis offered a blanco tequila ready-to-drink margarita.

I asked an alcohol distributor stocking a display about the transformation (spurred in part by consumers’ boredom with beer)...