Could spider bots become a normal, acceptable part of traffic and a reasonable means of transportation? They seem to require a great deal of maintenance and care. And they may not be the most efficient or reliable of vehicles. But they do get you from point A to point B, and the aesthetic factor cannot be denied.
I saw one of these at the USA Science and Engineering Fair a few years back - it was pretty amazing. As I recall, the "driver" had some difficulty with the steering, particularly with those tight turns!!!