Just ordered a pig from a local farmer and filled out a cut sheet. He says $600 to $625 Butchered and vac sealed. He even delivers it to you. I have not bought a pig before and have no idea what an average weight finished would be.
Seems a little high to me, but I haven't bought a pig for a while. If it weighs 300lbs (that's a big one), you will likely end up with maybe 150lbs of meat. That's around $4.00 per pound.