Demons Souls is £69.99 at most retailers. ~£65 at a couple. But no cheaper than that. Same goes for Destruction All-stars So the new price tag clearly is real. Not quite sure why you're making out like it doesn't exist?
I stand-by my statement that if someone wants to go out and buy either of those games physically at or around launch, they will pay around £60. I could pay £64 for it right now if I wanted and I could pay £60 for it digitally via PSN credit purchases.