If Bitcoin becomes the default store of value similar to gold, the numbers thrown around arent far off.
The gold market is worth $7.8T. With 21 mllions coins, that would put BTC at $371K per coin. Add in the fact that BTC is easier to use for payments and to transport/store, you can add a premium to the price I just mentioned.
In other words, there is a lot of upside.
RE: Bitcoin going to hit 500,000 by 2030?