Strange isn't it? They would've charged me a million pounds for the privilege, but I'm surprised they keep them on for so long!I had a B service done the other week and they only inspected the air filter instead of replacing it, car has only done 5714 miles and is just over 5 years old. In fact the air filter isn’t even on the service checklist at all.
I know most people simply replace it when doing a diy service.