Smaller, tighter binaries, although generally no smaller than through conditional compilation. Text entry and display possible with other languages that happen to have same code page. Fundamental rewrite of source will be required to take product to other locales. Release in initial market serves notice to competitors what to target elsewhere. Text sorting, numeric formatting broken for other locales.
Users buy products by mail order or while traveling.
User may be sold on product concept, will look for competing products that correctly handle their language. Or user might become frustrated, give up, and lose interest in your next version. Locale-Dependent Source Product is broken into separate source for each locale, such as French for Canada and French for France, or major sets of locales, such as European languages and Far Eastern languages. At some point, a code fork is made where a separate team owns source dedicated to a locale or a set of locales, with separate deadlines and requirements. User is limited to one locale or language series, which can't be changed without restarting or reinstalling product.