What It Takes to Be in the 1% Around the World

Curious what people think about this - is this the right metric? What about being top 1% of wealth instead of income?

Also, is country the right granularity? Take the US for example. It is so vast that being 1% overall is rarely going to be relevant. Your daily life is affected by the wealth in the area where you live, so it makes more sense to see what it takes to be in the 1% in your neighborhood (say 50 km/30mi radius)