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. Of course, the risk of investing in bitcoin can not be overlooked just like any other investment but the bitcoin risk is worth taking.
Imagine holding the BTC that you used to buy iPhone 4s till the present day and see the number of iPhone 15 you can acquire with it. If you have not started investing in bitcoin, this is the right time to start.
Even if you start investing in Bitcoin now, you will still need time to collect 0.031 BTC to buy an iPhone 15.
It's better for you to focus on collecting more BTC rather than just buying an iPhone 15 because, in the future, the iPhone 15 may be obsolete and replaced by a more sophisticated smartphone.
With the price of bitcoin increasing, it can make us buy even more expensive things, but on the condition that we already have a lot of bitcoin.
Having bitcoins for now is more valuable so we should be able to collect more bitcoins.