One News.com story today talked about Demofall, a yearly technology conference that originally started in the early 1990s: "At Demo, it's speed dating for products" (http://www.techrepublic.com/2100-3513_11-5875380.html).
According to the article, "Companies are given a short period of time—six minutes—in which to make their case to the audience of more than 1,000 people. Later, companies get a second chance to pitch reporters and investors one-to-one on the show floor, where each company has a small booth. If a company's presentation isn't compelling, the theory goes, the reporters and VCs won't visit their booth."
If you're interested in seeing new technologies (more than you would see at multiple other conferences), and you can focus your attention on something for 360 seconds, you might consider attending Demofall next year.