If i have 21 bitcoins. I will travel around the world and buy tickets to tomorrowland with my friends.
you are just wasting your bitcoin because if you have that so much money and you dont know where to use it , for me or my suggestion would be better than your idea , just hold it until one day you can use it for some emergency purposes because it will help you 21 bitcoin is so much money or try to reinvest it so that you can earn more than that.