I've called in on Mad Money a couple of times in the past - at one point they called me asking me to be on air. Perhaps he and the staff only wanted someone with a good stock tip to thank him, but maybe he also isn't getting enough callers. I saw on neilson's one day that he had 68k viewers at 11p eastern o_o - I suppose not so bad for a finance show. So if a bunch of my friends and I call him with a prank, one of them will be bound to make the show, especially considering the show goes uncut/unedited?
Personally, I'm more interested in pulling fish from the river than getting junior high jollies. You know, "greed is good", Gordon.