Technology Eliminating Privacy?

With the recent advancements in technology, some issues have been discovered by customers who are visiting retail stores that are participating in the use of "soft surveillance" technology. According to a recent blog post on Harvard Business Review, this type of technology allows retailers to obtain information about customers via the use of sensors and cameras that has facial recognition capabilities. Some retailers are even using sensors that can detect what kind of perfume or cologne a customer is wearing when they walk into the store. Obviously, this is used to increase sales by presenting customized adds and sales information for each customer based on their interests and recently purchased items. Some people say that this is an invasion of privacy, others are happy about the use of this technology and claim that it provides a better shopping experience. As technology continues to advance, there has to be a limit as to the extent we are able to use it, as it is already coming dangerously close to "crossing the line." A former hacker from Intellectual Ventures has shown how and RFID reader can obtain information from a credit card while it is still in a customers pocket. If retailers were to use something similar to this to obtain customer information as they entered the store, would that be an invasion of privacy? I'm excited about the advancement of technology and its impact on society, but I think there is a limit as to how far we can go with it. What do you think? Is the use of this type of technology acceptable?

http://blogs.hbr.org/cs/2012/08/retailers_turn_to_soft_surveil.html