If  your writing tastes lean toward the short story, a certain mindset may take hold  of you, one that you may not want to let go of. It could be that its conciseness grabs you. Or the approach the writer takes in its creation. It may that you enjoy the challenges the short short presents. For me, the short story represents everything positive about fiction writing. 

I quickly turned away from the novel, having developed little patience for it. I thought everyone's allowed to experiment, but this one proved uncomfortably tedious. During the novel's progress, I found myself searching for an ending. The one I came up with, I  felt forced, and a forced ending is something that should never be. I went back to the short story, to where I felt I belonged. I'd rather work within the limited space the short story provides. I'm not one for great amounts of exposition. Or buildup of story. I strive to get right into the story I'm writing. What I'm saying is that, for me, the novel just doesn't cut it. The short can be just as emotionally charged as the long. That said, the short story and the novel share things in common. I'm very glad they do. It means that neither of the two forms has exclusivity over the other.