Porsche got shit for the Boxster and 911 looking too alike from the front, so they only changed the 911. It wasn't a cost thing as you can unbolt the facelifted 911 headlights and bumper and bolt them on to a Boxster.
Fun Porsche facts are my party piece. I never get invited to parties.
The little round chrome popups came with the facelifted headlights on the 3.6 996. The Boxster never got the facelift.