Yeah, I don't think they've gotten the attention they deserve and some people haven't had the chance of knowing about them yet. It was a long time, probably a year after I had gotten my first BP, before I even heard of them. That said, I'm like WarriorPrincess in that I've always wanted a giant BP and I'm always hoping mine get big.
Anyway, rumor has it that the largest on record was something like 8 foot long. (Geez an 8 foot ball python...) My money is on the one Tom Crutchfield owns, as not only is Tom a legend in the hobby, but because that sounds to be appropriately the size of a small Burmese. I'd definitely being breeding that sucker, that's for sure. If all ball pythons were around that size, my mind would probably stop thinking of them as the toys or goldfish of reptiles. And I wouldn't want an African rock python any more. lol