The only time you should really go to Neds is to buy or sell textbooks, and then only because you couldn't get them for cheaper at the student store. Their prices are pretty much the same, but it's the selection of used books that really count. Your best bet is to go to both; they're across the street from each other. If you're selling books back, hit them at the beginning and end of each semester, but don't expect much for them, especially if they're literary. Also, don't buy school supplies there, their selection is horrible.