Ive heard sulcatas are the most. On a scale of 1-10 what are these ones?
These ones chill undercover most of the time.
I don't raise them, I have one male now. I've had him for a little less than a year I think. He is definitely more shy than my Russian but he does respond when I knock on the side of the enclosure when I put food in. I expect he will become less shy and more tolerant of handling as time goes on, he has already improved as far as that goes. He definitely does not hide all day.
I bet if you got a captive bred one, handled it often etc. it would be less shy. At least to a certain extent. Like I said, this one is getting better and better.
Are you thinking about getting one? 
Maybe. But I think their body has adapted to hide very well in their rocky environment. They are very flat, very fast. I have noticed that mine hide some more when he is outdoors and when he is indoors. But his outdoor environment is much better then indoors so I think it's worth it. All that natural sunlight. And nice weeds to eat. He comes out when I water down the enclosure.Is there a correlation between the friendliness of a species and the amount of predators their species would face in the wild? I would assume living around rocks would make it harder to hide from a predator than it would be in a jungle or savanna.