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.
Interesting, why didn't the Boxster get a facelift? Not that I expect you to answer ever Porsche related question, it just seems like you might know.