Whilst the headline price may not be much of a discount on the £19.99 RRP I was looking for these on Play.com yesterday to add to my Darth Vader Lightsaber order!
Additional characters are normally £4.99 so an extra one for £1 seemed like a bit of bargain.
There is a choice of two starter packs the other one is herehttp://www.play.com/Gadgets/Gadgets/4-/3438776/Funkeys-Starter-Pack/Product.html
You are restricted on which additional character you can have but, still a decent saving.
Dont forget quidco and there are some vouchers below where you may be able to use one depending on the size of your order.