Yes, but...
What if I live in Oakland, you live in Berkeley, and another player lives in Emmeryville, and a GM in Richmond wants to start a game. Which city does he pick?
All of those are within 1-5 miles of each other - and all share the same game shop. They're close enough that decades ago... after school my friends and I would walk through any given three of them in the same day (well, not Richmond, but maybe El Cerritto or Albany).
That's the problem with large metropolises, they're really composed of lots of little cities.
I myself live in Daly City, I'm about 500 feet from San Francisco, and a mile from Pacifica, 3 miles from South San Francisco, and 20 minutes from San Mateo. I used to be in a game in San Mateo in fact, and while I drove 20 minutes south, another player drove 20 minutes north up from Sunnyvale, and another drove 30 minutes from San Jose.
We're all little cities - but we all share the same first 3 numbers of our zips codes. By contrast in San Francisco itself, I've had one zip code on my side of the stree, say... 94111, and across the street was 94101, while down the block might be 94110.
(Hypothetical examples).
The same pattern holds in LA, NY, and the other metro regions. My brother lives in greater seattle, and the exact town he lives in wraps in a C shape around and inside of another three towns.
City names for searching become useless for us.
But it gets worse...
If I region search, do I search for SF, San Francisco, Bay Area, BA, SF BA, San Francisco Bay Area, or SF Bay Area... or?
- And how many people in the results chose to put their region rather than their city?
In US metro-regions, the only thing everyone there has in common that they have no confusion over what to call, is the first three numbers of their zip code.
Its the only constant, and a very quick way to judge that yes, this person is within distance of me.