I have been into the store to browse and also purchasing some items.
You can be shopping for a television, and ipod or just headphones, and they treat the customers with the same respect, reguardless what you purchase. My son was looking for headphones and we had picked out a somewhat expensive pair. The clerk asked him how he would be using the headphones, and suggested another pair that was not only less expensive but aprropriate for my son.
You can trust the sales staff to sell you something that fits your needs.