If you pop over to Argos right now you can pick up the Playmobil nursery school for just £12.99, reduced from £29.99.
Be warned; it's out of stock for delivery and stock levels are a little bit sketchy for collecting in store but if you're prepared to travel to your second or third nearest store you should be able to get your mitts on one. I've checked several variations of postcodes in different areas nearby and I can definitely find one within a reasonable travelling distance, given that it's half price.
I wouldn't usually be prepared to go to such great lengths to pick up a toy bargain but Playmobil is one of the few play items that I'd make an exception for; it's excellent quality, kids never tire of it, it resells at a brilliant price and it's rare to find a set on sale at half price. It's a really good sized set too - lots of bang for your buck, so well worth a bit of effort to snap one up, in my view.
This set includes the Playmobil teacher, 3 students and lots of other play accessories including a swing, a seesaw, a rocking horse and a sand castle slide.
With thanks to amh81 @ HUKD.