The miserable thing with the Gunslinger Girl Blu-Ray sets is you know eventually Funimation will come back and put them both in the same boxset, and with the OVA to boot, probably for the same MSRP as just one of the split season sets, and probably only a year or so from now.
Speaking of which, the Gunslinger Girl first season Blu-Ray set will mark the sixth time Funimation's released it in as many years. I'm not sure whether to call that a sign of success or excess. I love the show, but constant repackaging strikes me as less than positive.