There is a very real possibility of a bust happening in the next year or two. While we don't have any signs of slowing as of yet tap space is starting to get really crowded and while the demand for my beer is still high other much larger craft breweries like Bells and Sweet Water are taking over taps with much lower priced products. The bigger you grow, the scarier it gets!
It is looking like the 90s again, everyone who has brewed a couple batches of beer wants to open a brewery. The quick buck people are getting into it. At the same time, all of the established breweries here in Michigan are expanding. Bells has their 200 bbl system on line, and has 250k barrels as the target this year, and the capacity (with more tanks added) is said to be in the 800k range.
If the sales slow down, and the big breweries are set to increase, that will be trouble for the ones that have quality or financial issues. Just like the 90s.