This is now probably the cheapest available game on the PS3 and what a great price for a game that was only released 6 months ago.
Enchanted Arms is now available for just £14.99 until Friday morning and if you've a opened a free Collectors Account, then you'll also claim an automatic and guaranteed 6% cashback because it would be tracked by the site and you'll receive free delivery as well.
If you're a new customer, make sure you buy anything else from the site first to receive a 15% discount with the code BROADBAND (the discount doesn't include the daily offers such as this title or hardware) so buy something else first and then open up a free Collectors Account to claim 6% cashback on all future purchases to fully take advantage of the discounts.
Hope that helps. :)