That part where the neck is glued to the headstock is not low-quality at all. It's called a scarf joint. A scarf joint is used to connect the headstock to the neck in some guitars. Gibson necks, however, are cut from a single piece of wood. There is no scarf joint where the headstock meets the neck in a Gibson. This is one of the reasons you hear about headstock/neck breakage so often in LPs and other Gibbys. Necks cut from a single piece have "short grain" in the headstock, which translates into an intrinsically weak neck.
One of the ways around this problem is to cut a scarf joint from the same board, reverse the piece, and glue it on. The cut is made at the headstock angle, whatever it is. This gives you "long grain" in both the neck and the head stock. With a good cut and a solid glue joint these scarf joint necks are considerably stronger than the 1 piece neck construction.http://i492.photobucket.com/albums/rr28 ... fJoint.jpg