Whoever thought this chapter was gonna be more than it was is an idiot...
All this chapter was is just a basic intro as to how Obito became what he is today, which is NECESSARY because otherwise we wouldn't be in this WAR right now in Naruto. Madara is basically implanting the idea of revenge in Obito's head from the get-go, and Obito has been shown to have some revelations.
This is, so far, the most interesting flashback we've had in a while. We all want to know how Obito survived. Here we all thought we'd never see Obito outside of Kakashi Gaiden, yet he was revealed to be Tobi. This just goes to show how far many if not most (wouldn't say all) elements are planned in advance in Naruto as Kakashi Gaiden was written many years ago.
Chapter was great. I am even more interested in the next now because I want to see where this is heading and how Obito got powerful enough to control the Kyuubi in just a few short years (maybe 2? Obviously Madara's tutoring by this point). He went from having a crushed body to being able to defeat Minato. He obviously didn't during their skirmish, but if he had the Kyuubi WITH him while he was facing off Minato that would have been a different story.