No, really, it’s not that exciting. It’s a geek thing. Because of the Strobist, again. You know the drill. I get bored. I’m feeling not-so-good. I go online electronic toy shopping. Why would I want the übercharger? Mainly because it doesn’t only charge the batteries, it’ll tell you if the battery is bad, and it can discharge before charging (eliminating memory effect), it can test (charge, full discharage & measure capacity, then charge up again), ...