researched the market need, learned, bought business equipment or because it was so easy, why not.
My sons and I ride motocross, I wanted nice photos of them riding. I started with the XSI found out I sucked horribly and a camera doesn't make you a good photography, but I wanted to get better. I out grew the XSI and bought the 7D and a couple L lenses. I still suck at photography, but now I've eliminated the gear as the problem.
if you can't understand the prose here - google translate it.