if with just 10BTC can make you become a millionaire , what about people who own 1000BTC? i think they'll be a quillionaire 
Yeah if you want to become a millionaire with just 10 Bitcoins, that means that every bitcoin needs to be worth $100,000. I am not even dreaming about the Bitcoin price being so high so I would not know how it is going to be possible. If the bitcoin rises 40% a year, it will be 111 times of the present value, or $50,000 each. That is just 50% of the $100,000.