Good cause: curiosity. Good standpoint: aware of security. Hope you find some. I just made a one second decision while in online market place. Checked for old laptops. Read only "Olivetti, -95, workoing condition, price 20€" and a picture of a red laptop. One second decision, 10 seconds I called the seller, half an hour and I had picked it up. The sellers wife and neither my own wife didn't see any point on buying that 12mb ram laptop. But I love to try to work with it and make the most of it . So I hear what you answered "Why and what for Tizen?"