The crabs here in Brazil are a lot smaller than these absolute units, so while the work of getting through the crust still sounds about the same the reward in meat is so low to the point it's almost not worthy it going for the legs, only for the two pincers. So yeah, while crab is delicious i still don't feel like going for the epic struggle of eating it.
I did try a lobster once which has a lot more meat but it wasn't nearly as good as a crab, i'd love to get my hand on one of those massive boys.