I have one Dumerils and two BPs. I had the BPs first and found them to be very anti-social, fitting the pet rock description you've found. After doing some some research, I settled on the Dumerils for the reasons you stated - more social and known to be docile. I have found both of those to be true. Granted he's not a dog that comes rushing to greet me, my Dumerils is a lot less skittish and more tolerant of handling than my BPs. And as bcr said, they like to burrow; I don't even have a hide, just 1-2 inches of coco husk. They don't have cool morphs like BPs, but depending on how you look at it, that's an advantage because you don't have to make a choice in which morph to get.
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