I presume a Gibson/PRS/Fender etc. warranty extends only to the original retail purchase. If that is indeed the case, many of these guitars offered for sale on ebay or from places like Mark's Guitar Loft carry no warranty. Now in my long experience buying and selling pricey guitars, I've never seen this as a cause for concern, but it is quite arguable that warranty is worth something. Should I be concerned about that? One seller on eBay told me that wasn't a big deal when I broached the topic, and in my experience I'd have to concur. It does seem to me you're giving up some protection if you drop a similar price for a guitar from Mark's vs. my local store, all because he has a killer looking piece that I covet : ). If you get the guitar and it plays ok the day you receive it, I don't think that's going to change beyond a simple set up if the guitar is never damaged, right? Or not right?