Sad, but true!
Like I said SS, will have to take it one PF at a time and guage the interest from there. I imagine they'll know pretty quickly just how many people really want the Hobbits once pre-orders begin. Another "2+ years sitting in the warehouse" Frodo PF and the rest of the Hobbits are doomed.
The Frodo PF has been sold out for quite a long time. Not sure how long it took, but I've only ever seen it listed as sold out.
Because of their height, I think they should've done Sam and Frodo together, then Merry and Pippin together. I would buy the hobbits seperately, but I'm not sure how many others would.