You seem to be missing a category for "I convert other currency into bitcoins through an exchange".
I'd say that equals 100% to 'playing the market', no?
No, playing the market implies trying to make money on the price fluctuations by buying and selling. That is very different from buying a stash of BTC for later use (although I admit that if you do it hoping that the price goes up in the long run, you *are* playing the market - as opposed to if you plan on *spending* you BTC).