yeah Bansky is a good artist, I think he has gone main stream now though and his art is not really what it 1st started out being with its political undertones, now because of his popularity and showing his work in commercial galleries he has sold out slightly to consurmersim, especially with the likes of celebrity collectors like brad and angelina etc.. Its hard to take his artworks politcial stance serious now.
to be honest though i dont blame him as we all got to earn a living & pay the bills
if you like this type of street art check out this site...
Wooster Collective