I made a tiny $10 'investment' back at parity with the USD. Lost a $5 best to a friend and agreed to pay him 4 BTC instead. Today I was able to tell him that it

I made a tiny $10 'investment' back at parity with the USD. Lost a $5 best to a friend and agreed to pay him 4 BTC instead. Today I was able to tell him that it had appreciated to $115. He is pleased.