Why Location is Important / Why location based SEO ?
Now a days every one searching for best deal at his nearby , Google also function on same logic Google always show the data according to search requirement in terms of location.
Ex. People searching for restaurant in search media like Google / Yahoo / Bing etc.
Search engine shows data according to search location and show near restaurant in front of them .
Logic behind this common sense says people can't go for dinner or lunch to different countries or state or cities.
Because of that location matters and location based SEO help to make this easier for search engine.