I have one USA So-Cal and I love it. The MIM are nice, but hit and miss, and once I got the USA model, the MIM don't hold up. I also have six MIJ Jackson's, a USA Soloist, and three 80's MIJ Charvels. So I have a bit of everything.
If you want a kick ass guitar for $250,get a MIJ Jackson and drop in a gotoh $120 and you have a machine in a half. All of my MIJ Jacksons are gotoh or Schaller equipped and I love them to death. My most recent was a MIJ DKMG that I snagged for $200 then added the gotoh Floyd. I am in the middle of the swap literally at the moment. Also I have the factory trem listed for $50 and the last two Jackson trems sold from around that.
The one thing about the USA So-Cal is that they are OFR equipped, which makes a difference to me.
IMO YMMV, etc.