Tsssk, wash your mouth out liz! (Don't let jenny see that you typed the words *pay full price*)
We are having a lego christmas too but the lego friends variety so I have been stalking the lego prices.
If you had got them at Argos you would of paid £70 fire & £80 police and then your free item, £150 for 3 sets, so £50 each set.
The fire station is £56 and the police set is £57 on amazon right now, so not too much in price difference.
Or for the police station if you head over to Tesco direct they are giving 1500 points when you spend £75 on lego, that doubles to £30 when the boost is back on.
The police station is £65 on there, add a smaller lego set at £10 and you can get them both for £45. Just means you have to wait for the boost to spend the £30 of points.