there is no set reason persay, I just never really seen one, and My favorite basses that ive heard or played have always been through necks. I figure of im gonna dump that kind of money on my first expensive bass (compared to my current basses that were all bought under $250ea ) I might as well look at all my options and get the one I like best and I love the look of through necks along with the noticeable increased sustains on them. Dont get me wrong if it sounds like ass compared to a MIA Fender I would be stupid to not get the fender, in the end sound matters, but I guess I want to have my cake and eat it too, and im just curious as to my options.