What makes a call collectible? Or perhaps the better question is, what makes a call worthy of being in your collection?
As a call builder, I can answer this in two different ways. Firstly, does the call have a story behind it? I believe that most truly exceptional calls do. The question then becomes, are you collecting the call itself or the art that the call maker creates with their personal story?
I firmly believe that truly outstanding calls possess both qualities. This is why a call can be considered collectible, regardless of how it was made. It's not solely about how it was made, it's about the purpose behind its creation.