Amazon have a good price on the original Disney Infinity Playsets at the moment.
The Lone Ranger Playset has just been reduced in price to £9.49
Also if you are getting the free Woody or Mater characters from Game with O2 Priority Moments the relevant playsets for those characters are a good price also.
Cars Playset £8.99
Toy Story £8.99
Game are selling the sets for £9.99 each but most are out of stock, Smyths are £10.49 each and Argos are £10.99 each