An iTunes store article which lists some multiple language stores:
http://support.apple.com/kb/ht2242
As for calling them lazy developers, I suppose you know dozens of small developers that have the resources to do their descriptions in English, Spanish, Russian, Chinese, Japanese, Serbian, Polish, French, Hungarian, Turkish... shall I go on? I guess we should only have a handful of locally done apps because developers cannot speak hundreds of languages or have the resourses of a big multi-national, right? It has nothing to do with having to speak Spanish if you live in Mexico. Such statements strike overly-sensitive local nationalistic chords. I guess, then, that developers should only sell software in countries where they speak the language, and customers who might be retired people should also refrain from purchasing because they might not have the mental capacity to learn new languages.
I digress, if your computer will support a language, your app store should support the same one. In the 21st century, it's just too easy to do it, and too inconsiderate in the global village to rely on nationalistic pride to dictate language in electronic media. All the Apple app stores are from Apple, and the interface languages already exist. Is it really too much to ask to use the computer's language settings instead of the language your credit card bill comes in? This is NOT rocket science; it's common sense and courtesy to the end user.