Now up until this weekend I'd have said that I too wouldn't have held that as a high priority, but after viewing some rather dynamic wedding shots where the bride and maids were jumping up in the air and the groom and his men were "buzzing" the camera the 100% increase in frames per second would have been sure to capture more images of which just one might have been the killer shot, tis the law of averages really
I have a 5d and tbh, i'm not sure if I'd be that bothered about a crop factor if I could still get the image quality, sure my lenses would be a little narrower, but I'm really not sure you'd notice much of a difference on the stuff I shoot, sometimes I dare say it'd be a bonus because of the poor focus point placement on the 5 I tend to get loads of wasted headroom if I shoot portrait and dont have the time to recompose.