I agree with Rasczak - if it's interesting, then yes, it's a good field. I wonder though why you are talking about majoring in sociology and minoring in marketing - it sounds as though you are more interested in the design/marketing side of things. From what I've seen at my school, a lot of kids end up in sociology because it seems like an easy major and they don't know what they want to do but someone told them to go to university, so you might end up being frustrated with sociology classes.