They're claw meat is tasty! That's about all I can say, Craig, since the one time we were lucky enough to meet up with them they were already processed. Dipped them in butter. I would guess that you can steam them like other varieties of crabs. The seafood manager said they were like "northern stone crabs".
Point of reference: I got them as claws only about a year ago, with half the shell removed from the meat, sold frozen for $6.99 a pound. That might help as to what a "deal" is down by you.
"Let things taste of what they are." ~ Alice Waters