I purchased pulsar 150 in October, 2011 n performance is good. I purchased the bike for mileage but bike do not gives satisfying mileage and performance, it is giving mileage 40 kms/litre. I would recommend to purchase pulsar 180 cc who are planning to purchase 150 cc both bikes gives comparatively equal mileage and pulsar 180 cc have good looks and great performance its better than pulsar 150 cc and maintenance cost is equal to pulsar 150 cc.
So go for pulsar 180 cc much better than pulsar 150 cc.