Oops. Genshiken will NOT be 26 episodes, it will be 12 episodes, released in three boxes of three discs each, two episodes per disc, with the third disc being extras and a single uncut 25 minute episode of Kujibiki Unbalance. It appears that Kujian will thus be a three episode OVA, representing episodes 1, 21, and 25 of the supposed actual Kujian series. Further information here.
I also noticed this today. How unfortunate.
The first box is looking rather nice, though.
I saw you bring it up in chat just before I left for work, which prompted me to investigate. I agree that the box does look quite handsome and I plan to acquire it upon release (unless the series bombs extraordinarily from here on out). 14,490 yen is not at all unreasonable, within the scheme of Japan pricing at least.