If it’s at the bottom and you put it on a table, more of the land is closer to you and therefore easier to read.

Its all arbitrary, and we can all make up random minor pro/cons all we like but it don’t change that.

> more of the land is closer to you and therefore easier to read.

As most people age, that gets less true. The optimum placement ends up being around an arms length away, so being away from the edge could help.

But if you're showing the whole world, typically the details aren't that important, so it's mostly arbitrary.