7-Eleven Japan pulled its ¥100 draft beer pilot before the first cup was poured

Japan's largest convenience store chain, famous for stocking everything from boxed lunches to dress shirts and services from dry cleaning to bill payment.

A convenience store can pour cheap draft beer — ¥100 small, ¥190 large, self-serve from taps — as a traffic-driving pilot without overwhelming staff or neighborhoods.

Seven-Eleven Japan planned a pilot selling draft beer at some Tokyo and suburban stores starting Tuesday, July 17, 2018. It had not widely announced the service because it was meant to be a test, but social media picked it up just as taps were being installed.

Online reaction ranged from excitement to shock, with many customers arguing some products are better left alone. One Twitter user said the offering 'would make no one happy', citing disturbed neighborhoods, the burden on staff facing intoxicated customers, and drunken driving. Others worried rock-bottom prices would damage sales at izakaya pubs: 'I want them to quit sales of the izakaya-killing ¥100 beers.'

Even before the first drop was poured, the plan was put on hold 'due to projected demand exceeding prior expectation for the product', said Katsuhiko Shimizu, a spokesman for parent Seven & i Holdings. Overwhelming demand would have made it 'extremely difficult for the staff to respond'. The taps stayed dry until further notice.

Convenience stores run on lean staffing; a runaway-hit product can break store operations before it ever contributes profit.

The pilot's virality surfaced social costs — neighborhood nuisance, drunken driving, harm to pubs — that a quiet test would never have surfaced in time.

Pulling the plug before launch cost almost nothing; a botched nationwide rollout would have cost the brand far more.

A cheap self-serve thrill can be too popular to launch: when projected demand breaks your staffing model before day one, virality is a stop sign, not a green light.

As of July 19, 2018, the service was on hold with taps dry 'until further notice'; no relaunch had been announced.