This is probably the best episode yet that shows the way Saki is struggling to come to terms with the fact that she is fascinated by the otaku culture.
In the episode Tanaka teaches Ohno and Sasahara how to build Gundam style robot models. Saki pretends to find the whole exercise a stupid waste of time. Yet, despite her protestations, she is obviously pretty interested in the activity and even seems jealous of the fact that Ohno is doing something she is taking so much pride in.
This is all good character development for her character and I think it is handled as realistically as would be expected for an animated show like this.
The end of the episode is rather heartbreaking and is a great scene in which Saki is shown to be much more vulnerable than we have seen her in the past.moreless