isn't one of the things that makes the US good for startups the fact that we have one large unified market? If you only read this post you might think it would be better to start in a European country. I guess the takeaway would be, you can turn your limitation (relatively small home market) into a strength (use your niche)
I think what makes the US a good market is that is has a large general market, which is strong because its size produces more opportunities due to bigger niches not due to sheer size and certainly not due to homogeneity.
