Yes, there are plenty of marvelous educational reasons why Maker Faire is great. (Check out this "How to" guide for teachers who want to create a Maker space in school, and this Makers' workshop for teachers.)
But Maker Faire is also simply random fun. Here are a few snapshots from what we saw last weekend in San Mateo at the 9th annual Maker Faire, when EdSurge team members, Gordon Dean and Betsy Corcoran, armed with mere cameras, stepped into the Making melee. Got captions? Add 'em in!