In Singapore, a 'VendCafe' (vending machine cafe) was opened last year, and since then, one or two more have been established. Over 90 local and even some international dishes and drinks can be ordered from the vending machines in the cafe.

Quite an interesting concept, and could really be viable as long as people value convenience most or begin to believe the food produced is of the same quality and nutritional value as 'real food' cooked on the spot by chefs (rather than likening the vending machine food to frozen meals, which may be the common view).

Here's one of the articles about it: http://www.channelnewsasia.com/news/singapore/vending-machine-cafe-opens-at-ang-mo-kio-mrt-station-8942662