They will want at least one whole Bitcoin. That isn't really viable for a lot of people though.
If you and everyone else keeps saying this to yourself, then you'll never get or understand what Bitcoin is now, or will be in the future. How do you think Bitcoin will survive in the future when it's exchange rate = $10K/btc, or $100k/btc? You think that will somehow prevent people from buying and using it? On the contrary, it will be the exact opposite.
Satoshi could have just as easily launched with 1 BTC as the cap, and there is still enough bitcoin for everyone in the world to buy and use it. The whole fkn point of having 8 decimal places, with room for 8 more with a single line of code change.
You obviously still don't get it.
People are not going to stop buying and using something nearly infinitely divisible, just because the single unit exchange rate is showing something more than they can afford. The amount of world merchant adoption will be the only measuring stick for any cryptocurrency's popularity and usage at world scale, not the exchange rate.
Bitcoin is not a form of "bling" and there are no bragging rights. It's simply money, to be saved and spent. You can buy any amount of it now, or in the future, no matter what the exchange rate is.