Hi all. I am going to try out a used 2007 VOS R7 gold top. The guy is asking 2600.00 Its pretty much in mint condition except for a small scuff near the input. From the pics it looks like it can be buffed out. Regardless there is no COA. Only the original case. It does bother me and I am worried that may hurt if I decide one day to part with it. A deal breaker? Not sure. If the guitar plays and sounds great and reaches out to me should I be that concerned? Does not having the COA knock down the resell value? If so how much? Thanks. Oh and I do know what to look for to make sure its a true R7.