(EDIT//) cheaper at Game with £5 discount voucher of [email protected]
and using quidco. No one has posted this yet but I can't edit my direct link and don't want to be seen as spamming. (EDIT//)
As stated price is £74.99. Don't have any vouchers at the moment but quidco works with this company so you can save another £2.99 on it for £72 overall. I will look them up to see if I can find any vouchers but can't see any at the moment. Currently in stock and cheapest this set has been to my knowledge.
I got this for £79 at launch via tesco with a voucher but this is the cheapest I've ever seen it. Also I sold the codes for £35 on ebay so got the figure, collectors edition stuff (which comes with this too) and box for just £44. You could do similar if you wish to get it even cheaper.