Yes, it allows you to buy more for the same amount of money, increasingly as time goes on. This is why it results in economic slowdowns, because people are more hesitant to spend money when it may be worth more later.
In fact we see this in a small scale in the tech sector all the time: products get more powerful or cheaper or both, meaning people who might want to upgrade often agonize over waiting to spend their money to a point where it will obtain more per unit of value.
Or with Crypto, consider the HODL mentality. BTC would have made a lot more progress towards use as a medium of exchange if an enormous number of people weren't simply buying it on the hope of future value, or speculate by continuously selling the peak and buying the dip. There's even the cautionary tales in the crypto community against actually using any if it to cash out for purchases, such as the person who paid for a Pizza with enough bitcoin to be worth over $100,000,000 today. The message is "Never use it, always HODL" Of course there's always the anecdotal person here an HN who will chime in with, That's not true, I just bought X with it!". Which is fine, but an extreme outlier.
It will never deliver on it's goals when that, and investment speculation, are the two dominant use cases. Bitcoin is trapped in a cul-de-sac right now, and absent some unexpected event, mainstream everyday use of crypto by average people-- if that comes to pass-- will bypass BTC by as it circles around that cul-de-sac.