what's the difference the blem one is cheaper but there pretty much they same
"blem" means "blemished", silly.
blem means its a blemished one. that means there is damage to the guitar's finish or visible blemishes on the hardware etc. it shouldnt be bad enough to make the guitar unplayable, but its a pretty big gamble to buy an it show up and it have lots of damage.
i wouldnt buy a studio anyway