It's inarguable that BTC value has grown immensely overtime and it's one reason to keep accumulating BTC as you can. Apple has just unveiled iPhone 15 which is estimated to cost about 0.031 BTC with the current price. Comparing the price of previous iPhone to bitcoin, you'll see the important of investing in bitcoin than buying assets that depreciate in value overtime.
Coingecko compared the price of bitcoin with Apple smartphone products. It is more suitable to compare the price of bitcoin with local currency so that people understand that bitcoin is an investment asset that has the best value as digital gold.
Additionally, people will understand that buying and holding bitcoin will provide much greater returns than other types of investments — for those who value other investment assets more.
The price graph of fiat currencies such as the dollar has moved downwards, but bitcoin has moved upwards since it was first introduced.