Good points on Blake. No doubt his humble demeanor during interviews, and how he genuinely seems to appreciate his opportunities is a big selling point with casual fans, and people who are tired of the Kobe's and LaBron's of the world.
I personally think it sells with Blake, because it is who he is, and not a constructed image.... He is like a big kid playing the game he loves, and that is contagious.
An example of the opposite is one of my favorite players, Kobe. He had the reputation of being spoiled, selfish, etc... The Lakers hired two image improvement consultants to work with Kobe. One of the women spoke about the greatest issue they had to deal with was Kobe's filthy language. I mean this woamn said Kobe cussed worse than 10 sailors, and he often let them fly during practices and media events when young fans, women, and others were around. The organization knew he was very intelligent, and also very concerned about his image. They brought those people in to improve his public image, and Kobe accepted it and worked on it.
I told that story to say, though I love KB, I still believe the guy is a total jerk who couldn't care less about other people, including teammates, coaches, etc. He has LEARNED to present himself as a more humble guy who loves people, but just watch Kobe on the bench when LA struggles, and he does not know the camera is on him. He still pouts, cusses, and throws tantrums, he just learned to do it in a more obscure, controlled way. Many people see through the facade. Jordan is/was the exact same way......
Blake is just a good kid, not saying Kobe doesn't have many good qualities, but people naturally love a kid like Blake.......