It's useful to do a check here on location bias, since there are literally billions of people that don't use "," as thousands separator and don't separate the digits in the groups of three. Further, there are many countries where their day to day money is in hundreds of thousands. E.g. you can buy a decent lunch for 1,131,750 VND.

Also there is some nice symmetry in doing 0.00'123'000 BTC (=123k sats) It has 9 digits separated into groups of three.