Cost savings?
$19 for a 5 litre pack, roughly $4 per litre, $2 per pint (roughly). £1.30 per pint.
With exchange rates, this basically means that the beer it brews costs the same as buying '3 bottles for £5' from a British supermarket near you.
It's a moot point for me - I only drink beer in pubs, and I tend to use a few pubs that sell beer from long-standing local microbreweries.
'Craft beer' is only a marketing term. Still, I guess we should be thankful that the real ale market is healthy, even if this current crop of microbreweries seem obsessed with American-hopped IPAs. Taste is personal preference, it's just a bit boring when a good social pub only has four IPAs and a porter (because they have bought it cheap from wholesalers who have in turn bought it cheap from newly-established IPA-obsessed breweries with little reputation)