Yeah, I shoot weddings Thanks Andrew for the kind words!
I have had 1 Sandisk card die on me, it died to a point that recovery software didn't work and it could not be formatted but either computer or camera, luckily it was only holiday photos on my backup (compact) camera. Had to RMA it, and I remember making a tweet about it and Sandisk got in touch !
But that was 5 years ago and it has not happened since.