Saw this at Smyths toys at Rayleigh Weir.
£49.99 to £59.99 at other places.
Seems to be a great price for this model.
Note: this is not the 6 hour model but 24 hour model (sterlisation lasts for 24 hours on 24 hour mode).
Bought 2 myself, 1 or 2 left in the store and not sure whether it is nationwide.