Well, San Diego is a large city, you won't get around if you're just gonna walk to point A to point B, especially in areas where public transportation is nonexistent (like North County).... If we are talking about pedestrian streets in San Diego and not just sidewalks, then you might be right, but I know "every corner" of San Diego County (i was born and grew up there 'till last May) and I can assure you that you can get very well around in most of San Diego County, at least in the most populated areas like National City, Chula Vista, La Mesa, El Cajon, Imperial Beach, downtown, Grossmont, Coronado etc. Btw, San Diego public transportation is not that bad

, buses there run every 10 to 15 mins in most of the cities i mentioned above, except, probably in areas such as Otay Ranch, East Lake, or La Joya, where you have to wait at the bus-stop for 20 mins or so (at night) ... Anyway, i wish Miami had a good transportation like San Diego, I don't drive here and it takes me 1.15 hours to get to downtown! while in San Diego it takes you just 20 to 25 mins from Imperial beach to downtown San Diego..