Because of the changing nature of pop culture and fashion, it’s very difficult to include contemporary references in fiction. Some people do it very well — Seth McFarlane, the writers of Psych and Warehouse 13, Joss Whedon — and some don’t. Others just avoid it altogether — for example, Laurell K. Hamilton is very cagey about exactly what type of phone Anita Blake uses. There are positives and negatives to both; catching an old rerun of Family Guy will remind you just what didn’t hold up a mere ten years ago.