I've donated to brewery kickstarter campaigns before, but when they do more than one...that is just begging.
The best are the "experienced homebrewers" that caught the bug about a year ago and only need $10k to get their product in the hands of the masses. Contributions below.
$1 - Good karma
$5 - A double thick fiber bar mat (fancy name for coaster) - Must pick-up at brewery, these things aren't cheap to mail
$10 - A thank you from me to you in my bathroom mirror after I count my money
$15 - Both the $5 and $10 gifts (best value!)
$25 - A hand written thank you note. We won't mail it, but it will exist.
$50 - A t-shirt with our crappy logo on it printed on rags from China
$100 - Your name on beer bottle. We have stacks of these, so buy some for your friends
$1000 - We will name a beer after you. Not one of our beers, but a beer that we will drink on Friday night after we count our money
$10,000 - We will name a fermenter after you. We've got about two dozen glass carboys, we will put your name on it and it will be there until we break it.
I'm not that cynical honestly. I like the ideas of existing quality breweries using kick starter to expand or buy a bottling line. At least in those instances your money has a half decent chance being used wisely.