At the airfield I work at they have fairly recently installed new ILS masts. Unfortunately, one of them has changed the taxi pattern due to the fact that the most common a/c that use the field have a wing span larger that the clearance to the mast. This involves the aircraft being pushed back down the runway, depending on runway in use. This means that slot times have to be borne in mind when flight planning, (in this case an extra 30 minutes)!
With everything weighed up a 1 - 2 tonne fuel penalty, (depending on flight planned fuel burn), most probably is the cheaper option.