Although the total issuance of Pi coins is 100 billion, after deducting locked and reserved amounts, the amount of coins that may circulate in the market in the future could only be 10 billion. To support global economic trade financial settlement, the total world economy is at least over 500 trillion USD. Based on this calculation, a coin needs to be valued at 50,000 USD to take on the heavy responsibility of contemporary global economic and trade settlement. For wallets with few base coins, without some lightning, and not yet passed by Jiulv, the wisest choice now is to buy some at a low price from exchanges for storage.