Limited supply does not make things valuable per se.
And there's been growing demand for bitcoin for 12 years and counting.
It's deflationary by design. But by all means, stick to your government money.
Printer goes brrrrrrrrr.
I sit on it while it appreciates.
Number go up.
The reason why it is capable of increasing, is because the number is fixed. Inflation would outstrip its value, if it weren't.
Bitcoin is useful. It has organic support. When it comes to storing value, other coins do not matter (nearly as much). Just ask PayPal, Mastercard, Microstrategies, Tesla, JP Morgan, GrayScale, etc.