The cliquishness (for want of a better word) of college life is what makes Durham (and those other, lesser collegiate universities in the home counties) what it is. The close sense of community gives people a strong feeling of belonging to a community, rather than the rather apathetic association that students at other unis appear to have with their SU. The strength of the communities in some of the older colleges may come across to outsiders as insularity and snobbery, and hence the reputations of Castle and Hatfield being what they are. As a state-educated Castleman, I can tell you that (at least within the college) there is no snobbery towards people of non-rah backgrounds, and in fact there is almost an inverse snobbery that people look down on rahs as interesting relics from an era when inbreeding and inherited wealth had more sway in getting you a place at university than academic potential.