From that list the only thing that are a must buy, the LotR trilogy but that must be the EE's I won't buy the theatricals, nothing else though. Maybe a rental on the Blade films. But wow, they have a very weak library.
I can agree about T2. As for the LotR, I thought the EE of TTT dragged but not RotK. I will say that even though TTT dragged it was still better then the theatrical. Hopefully they'll do the branching with the HD set but I highly doubt it. I'm willing to lay money down that we see the...