Disregarding the hipster crowd, so many of these "fiddlers" also have such a laughably mundane and insipid taste clashing strongly with their proffered love for music that an outside viewer can't help but raise an eyebrow; I mean, when your musical world is made of Steely Dan, Diana Krall, Neil Young, Bruce Springsteen, Bob Dylan, Pink Floyd, etc...
It's just the man equivalent of collecting porcelain figurines, but with an ad hoc rationalization (it really sounds better!) to protect the ego. Related to Gear Acquisition Syndrome.