Some other collectors call me a snob, but I only collect SteelBooks from my own country (UK). Reasons being: A) They are readily available; and B) Easier to resell if I ever decided to (not that I would)
It's hard enough to keep track of the UK releases, let alone having to worry about what I'm missing elsewhere. While I wish some foreign SteelBooks were released here, I know it's usually a matter of time. However, I wouldn't mind owning a copy of A Trip To The Moon if given the chance, but that would perhaps be the exception