Everyone is going organic these days so why not have brewing kits at home instead of going out to the nearest pub?
Brad Smith in his Home Brewing blog says:
Brewing beer has its own intrinsic value. There is something people find inherently rewarding the creative process. Its not just any beer, its your beer that you designed and created with your own two hands. In a sense, the ability to do something new, unusual, challenging and rewarding is the basis for all hobbies including this one.
Brewing is a great hobby for busy people, as it really does not take that much work to brew a batch of beer. Extract brewing consumes perhaps a few hours of time spread out over several weeks, and even all grain brewing adds only a few hours of additional work. You can adjust the amount of time as needed to match your schedule.
And a few other things besides.