Universities offering more educational opportunities to attractive students

In a recent posting I noted the trend toward increasing enrollment during sluggish economic times appears to be limited to physically attractive people. Recent ads for graduate schools are featuring students with big smiles, tans and tight tops. Are these model actual students or are the staffs of university public affairs departments borrowing a page from product advertising? The models in ads for degrees including doctorates are just as likely to populate the pages of talent books.