Dont forget that BTC are limited, in a way well known.
By selling the pizza for 10000 BTC, he got somethign which he knew would grow harder and harder to obtain.
And, besides, probably the main reason is, he liked the idea.
You might think a free and unregulated currency is a good idea, and support it by risking the amount of 14$.
Or its just playing with science, like "whoo, how does this work, lets try it, it costs less than an evening in the cinema!!
By selling the pizza for 10000 BTC, he got somethign which he knew would grow harder and harder to obtain.
And, besides, probably the main reason is, he liked the idea.
You might think a free and unregulated currency is a good idea, and support it by risking the amount of 14$.
Or its just playing with science, like "whoo, how does this work, lets try it, it costs less than an evening in the cinema!!
Yes. Everything is right! ... but there are many things become rare on the Earth (Old cans for exaple). But nevertheless, he chooses to receive Bitkoins for the pizza. He could exchange this pizza for a tail of a squirrel, or shit of a whale or images of someones fingerprints (this is also rare things)
But, what attracted in idea of bitcoin not in idea of ... ?