Hi, I have an old vintage guitar that has a set neck. It is a gibson les paul was made in the 1970's. The guitar is about as mint as one could get as the original owner only played it a handful of times. The glue joint from the body and neck has partially failed though. There is no damage other than the cracking on the joint and it has slightly separated. The neck is perfectly straight and angle with the body is still right on. Here is my question. I have taken the guitar to a well known luthier who says that I could either have the neck reset for $300.00-400.00 or have the joint injected with wood glue and clamped for $100.00. My question is, does a neck reset affect the value? I know if I have the joint injected then the finish on the guitar will not be at risk (other than the cracking at the body/neck joint). Which would be better to retain the value of the guitar?