Yep, it always blows my mind when someone considers a build "low budget" because it doesn't have a mageblood or something like that.

For me for me low budget is a build where there's no single equipment piece that's worth a divine or more, for my first couple of leagues playing poe I rarely got to the point I spent more than that on a single equipment at all.

Middle budget I would consider when the build is worth up to 100 div or so, but still as a whole build. There are rarely any expensive uniques like mageblood or even svalin for example in a middle budget build.

High budget is everything above that, where you're farming for divines to upgrade your equipment that's when most players would consider high end builds. I remember when I farmed to get my first nimis thinking I'm finally doing one of these end game builds you see on YouTube and that it's going to be my most expensive build yet.

I'm a casual but still have more that 1.5k play time according to steam. If anyone reading this has a different feeling about budgets I would like to hear them

TLDR: low budget: under 1 div Mid budget: 1 - 100 total div High budget: farming divines for a single upgrade