Also it is very simple to test the theory about black people not being interested in bitcoins..

go to harlem or south central LA and walk through the neighbourhood wearing a nice new pair of sneakers AND an old teeshirt and write on it in big bold words "I have 100 BTC and the key is on this T-shirt"

now you get jacked and they take your sneakers but leave the T-shirt then those black people are NOT into bitcoins.
if they take your sneakers and your T-shirt then those people are into bitcoins.

and to prove that I am not being racist you can try this experiment in poor white neighbourhood and see how you go.

I'm willing to bet that in both cases you will walk out with no sneakers and no T-shirt.

give it a try and let me know how it goes...