I get it occasionally up here in the great white north. Its fairly easily available. As an Aussie they are virtually the same to me. Colouring wise Vegemite is less black and slightly more tawnyish. Marmite from what I read is a bit older in heritage.
So what’s the deal on this stuff?
Most of humanity likes yeast, we love yeast rolls we love sourdough, so why is America revolted by this stuff?