Skeptism is a natural counterbalance to faith so we don't just believe anything we hear or read. Its difficult to understand most subjects themselves without experiance, let alone accept them. It's easy to call others skeptical as it is for them to say we're guilible, the difference is experiance, and as we are blessed with more than most people will in their lifetime, we shouldn't judge their skepticism as we wouldn't ourselves like to be judged.
I am naturally skeptical about everything I encounter, including magick. Some skepticism is healthy. I like to Think about my belief choices, not being a big fan of blind faith. I experience magick as pretty scientific anyway, - practicing magick is a valid experience, not a faith. I don't think that a scientific approach is necessarliy a bad thing. The two aren't mutually exclusive. In fact, study could lead to broader acceptance of magick in the long term. We shouldn't fear analytical minds, they help us to question ourselves, and to find out if we really do believe and understand the things that we say we do. I am quite happy to discuss magick with a scientist :)