Invoking air aids in study, clarity of thought, and encourages a distanced and unbiased frame of reference.
Invoking fire aids in creativity, physical and emotional vitality, and self-knowledge.
Invoking water aids transformations in personality, getting in touch with one's own emotions, and helps you reach and interact with your subconscious.
Invoking earth beings stability, fertility, prosperity, and a practical understanding and view point.
Those all sound like pretty awesome reasons to study elemental magick to me.