Not that I'm expecting an E3 memory card price cut, but purely coincidentally, Amazon US has slashed the prices of its memory cards by around a third, and stores like Gamestop and Newegg also seem to be around the same mark.
However, it could be a quick sale, and I've no idea what Gamestop were selling them for previously. No sign of a reduction on Amazon UK (currently £54 for 32GB on Sunday AM, but I've put the ad in anyway, so you can spot if the price drops). I'll have a peek around the markets and see if this is a trend or just a blip. Let us know if you spot an EU bargain.