I think you mean Bitcoin is portable, whereas Gold is not. That's one of the key advantages of Bitcoin. You can store it within the smallest medium possible, hidden in plain sight. Millions, if not, billions of dollars can be moved anywhere in a safe and discreet way. You can't do that with Gold. Carrying bulky bars and/or Gold coins will bring unwanted attention.
Not only Bitcoin is portable, but its supply is predictable too. No one knows how much Gold is in existence, but everybody knows there will only be 21m Bitcoins. This predictability should make BTC even scarcer and more desirable than Gold. With "Wall Street" quickly flocking to Bitcoin, you can see what the craze is all about. I'd keep buying BTC regardless of price to build true, generational wealth.
The limited supply of Bitcoin makes it one of the most ideal asset to invest because with time it's supply will increase in a controlled manner until we have 21 million Bitcoin generated. So as demand of Bitcoin goes high with time, it's supply won't go up in that manner. Current price of 110k is mainly because apart from individual investors now we have institutes that are investing in Bitcoin that's why demand has gone high while supply is limited.
Yes, the limited supply of Bitcoin is attracting investors to it, as well as playing an important role in securing one's wealth. Since it is decentralized, people have trust in Bitcoin. The government can harass any person if they want. But since the invention of Bitcoin, people have been able to keep themselves completely anonymous. Some now prefer Bitcoin only as a store of value. The limited demand for Bitcoin has created more attraction among people.