I wouldn't say it's a dumb question, because it's something quite common with certain pieces of software. For example, KDE used to be more used in Europe than in the rest of the world, and enjoyed a significantly higher market share than Gnome, although I think that with the continued success of Ubuntu this probably has changed a bit in the past years.
Firefox also has a bigger market share here than in the USA, particularly in the Eastern countries, Poland and the like. Opera has excellent figures in Russia (around 15% or something), and IE shells like Maxthon are widely used in China. Of course, in the latter case we switch to local-developed software, and in the case of China there are a few other examples, like the QQ IM, which seems to be the craze over there.
Restricting myself to my homecountry, this a land where the only IM client ever used is WLM, the rest practically do not exist (although there was a surge of Google Talk usage a while ago). And a few years ago, the Panda antivirus was the most used here, but with the appearance of better alternatives that were either free or paid, it lost a lot of its appeal. Now only certain magazines sing their praises about it, and not exactly because they really like it, if you know what I mean :)