Dead Space 2, for instance, is an inexplicable £47.99 (£17.99 in HMV and Amazon), Mass Effect 2 and its inter-species rutting retails for £47.99 (£17.99 on Amazon or Play), while Sony's own inFamous 2 is an electrifying £49.99, despite being just £27.99 from Amazon or Play.
So you can download these three titles for £146, or buy boxed copies for £64 and recoup around half that by selling them when you're done. £35 or £145? Hmm. Tricky. What the hell's going on?