Yes, I have 7 different 7/11s between my apartment and the closest sky train stop (Victory Monument). It is a straight walk of about 1 km (just over a half mile), and I s**t you not, there are at least 7 of these stores in that small distance. Two are right across the street from each other. And one of them opened up two days after I moved in.
Understand that I have only counted on the street between my apartment and the BTS (sky train) station. I am supposing that were I to do a 1 km radius count of the 7/11s from my apartment, I would count far more than 7. And the funny thing about this is that every one I have been by is always packed with people... including the walk up stand that only has a window, a hot dog roaster, a slurpee machine and a cold case for beer and soda and milk (imagine something about the size of a smart car or a yugo).
So as Asia industrializes, all I can think is 7/11... what an investment opportunity.